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  • 42.75
  • ASTROPHYSICS
  • 2015-2019  (42)
  • 2000-2004  (19)
  • 1975-1979  (2,155)
  • 1950-1954
  • 1
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    Oligochaeten van brakke en zoute wateren in Nederland (Annelida: Oligochaeta) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.115
    Details
    Publication Date: 2018-12-13
    Description: Oligochaete wormen komen vooral in zoet water voor. Maar in brak water en zelfs in de volle zee komen enkele soorten voor. Bij onderzoek naar marien benthos werden deze dieren traditioneel niet tot op soort gedetermineerd, omdat ze klein en lastig te determineren zijn. Ze zijn echter niet veel lastiger dan de nauw verwante Polychaeta, die ook hele kleine vertegenwoordigers kennen. In dit artikel wordt een overzicht gegeven van de 32 soorten die nu uit het zoute water in ons land bekend zijn, waarvan er hier zes als nieuw voor de Nederlandse fauna gepresenteerd worden. De vondst van Heterodrilus subtilis in de Noordzee is zeer bijzonder, omdat deze soort verder alleen bekend is van het typemateriaal, dat ongeveer honderd jaar geleden in de Golf van Napels werd verzameld.
    Keywords: Oligochaeta ; Nederland ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    Wantsen van de Nederlandse Waddeneilanden v (Hemiptera: Heteroptera) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.87
    Details
    Publication Date: 2018-12-13
    Description: Het laatste overzicht van de wantsen van de Nederlandse waddeneilanden dateert van 2012. Een opsomming wordt gegeven van 43 nieuwe eilandrecords, waaronder vijf soorten die voor het eerst op de waddeneilanden zijn waargenomen. In totaal zijn er nu 380 soorten wantsen van de Nederlandse waddeneilanden bekend.
    Keywords: Heteroptera ; Nederland ; Waddeneilanden ; verspreiding ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 3
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    Nieuwe en interessante Nederlandse wantsen vi (Hemiptera: Heteroptera) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.57
    Details
    Publication Date: 2018-12-13
    Description: Een overzicht wordt gegeven van waarnemingen van 33 soorten nieuwe of anderszins interessante soorten wantsen. Psallus aethiops (Miridae), Empicoris rubromaculatus (Reduviidae), Arocatus melanocephalus, Lygaeus simulans, Eremocoris fenestratus (Lygaeidae) en Nezara viridula (Pentatomidae) zijn nieuw voor de Nederlandse lijst, die daarmee nu 640 soorten telt. Naast nieuwe waarnemingen van zeldzame soorten wordt de recente uitbreiding van Cymatia rogenhoferi (Corixidae), Cardiastethus fasciiventris (Anthocoridae), Arocatus longiceps en Rhyparochromus vulgaris (Lygaeidae), Leptoglossus occidentalis (Coreidae), en Peribalus strictus en Rhaphigaster nebulosa (Pentatomidae) in kaart gebracht.
    Keywords: Heteroptera ; Nederland ; verspreiding ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 4
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    Na ruim vijftig jaar weer een teken van leven van de ruighaarkever Dryops striatellus in Nederland (Coleoptera: Dryopidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.101
    Details
    Publication Date: 2018-12-13
    Description: In Nederland komen tien soorten ruighaarkevers (genera Dryops en Pomatinus) voor. Ze leven langs oevers van stilstaande en stromende wateren. Het was een verrassing toen in 2014 een vrouwtje van de zeer zeldzame Dryops striatellus gevonden werd bij Bakkeveen (provincie Friesland). De soort was sinds 1960 niet meer in Nederland gevonden. In 2016 werd D. striatellus op een tweede locatie nabij Bakkeveen gevonden. In dit artikel geven wij informatie over de soort en presenteren bijzonderheden over de Friese populatie en haar habitat.
    Keywords: Coleoptera ; Dryopidae ; Dryops striatellus ; Nederland ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 5
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    Gampsocera numerata, een nieuwe halmvlieg voor Nederland en Belgie (Diptera: Chloropidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.11
    Details
    Publication Date: 2018-12-13
    Description: Op 14 oktober 2015 werd een halmvlieg met fraaie zwarte vlekken op de vleugels gefotografeerd in Hoogerheide (Noord-Brabant). Na vergelijking van foto’s werd geconcludeerd dat het moest gaan om Gampsocera numerata, welke determinatie later werd bevestigd. Reeds in 2009 bleek in België een mannetje van de soort gefotografeerd te zijn in een tuin in Evere. Ook in 2010 en 2015 is de soort in België gevonden. Dit zijn de eerste meldingen van G. numerata voor Nederland en België.
    Keywords: Diptera ; Chloropidae ; Gampsocera numerata ; Nederland ; België ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 6
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    Dispersal of the invasive tubeworms Desdemona ornata and Pseudopolydora paucibranchiata to the Netherlands (Polychaeta: Sedentaria) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.49
    Details
    Publication Date: 2018-12-13
    Description: Recently two exotic tubeworms new to the fauna of the Netherlands have been recorded in inshore waters in the delta area: Desdemona ornata and Pseudopolydora paucibranchiata. Within the Polychaeta these worms belong to the group of the Sedentaria. These construct a tube, in which the body of the worm is hidden. The head and feeding appendages protrude from the opening. Most probably these tubes are a major factor in the transport of these animals around the world, as they provide excellent shelters when they are attached to the hull of a ship or commercially traded shellfish.
    Keywords: Polychaeta ; Pseudopolydora paucibranchiata ; Desdemona ornata ; Nederland ; verspreiding ; exoot ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 7
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    De boszandbij Andrena coitana herontdekt in Nederland (Hymenoptera: Apidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.31
    Details
    Publication Date: 2018-12-13
    Description: De boszandbij Andrena coitana leek verdwenen uit Nederland. Veertig jaar na de laatste waarneming in 1975 is weer een populatie van deze soort gevonden, bij Epe in Gelderland. De boszandbij is een kleine soort, die mogelijk nog op sommige plaatsen over het hoofd gezien is. In dit artikel wordt de kennis over deze bijzondere bij samengevat en gespeculeerd over de oorzaken van de achteruitgang in Nederland.
    Keywords: Hymenoptera ; Apidae ; Andrena coitana ; Nederland ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 8
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    Twee bijzondere spoorcicaden voor Nederland: Kelisia monoceros en Ditropsis flavipes (Homoptera: Auchenorrhyncha: Delphacidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.1
    Details
    Publication Date: 2018-12-13
    Description: In 2015 werd Kelisia monoceros voor het eerst in ons land verzameld bij Kamperland in Zeeland. Deze spoorcicade leeft op de algemeen voorkomende valse voszegge. De vondst wijst op een recente areaaluitbreiding. Een andere spoorcicade, Ditropsis flavipes, werd al eerder uit ons land gemeld, maar verspreidingsgegevens worden nu voor de eerste maal gepubliceerd. Ditropsis flavipes leeft monofaag op bergdravik, een in Nederland zeldzaam gras.
    Keywords: Homoptera ; Delphacidae ; Nederland ; verspreiding ; biologie ; Kelisia monoceros ; Ditropsis flavipes ; herkenning ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 9
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    Nieuwe vondsten van weduwen Latrodectus in Nederland (Araneae: Theridiidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.17
    Details
    Publication Date: 2018-12-13
    Description: Alle spinnen hebben gif in hun kaken om hun prooien te doden. Verreweg de meeste soorten kunnen de menselijke huid niet doorboren met hun kaken en zijn dus volkomen ongevaarlijk. Kogelspinnen uit het genus Latrodectus, oftewel weduwen, vormen een uitzondering. Deze exotische spinnen worden af en toe geïmporteerd in Nederland. In 2013 is het aantal vondsten van geïmporteerde Latrodectus-spinnen op een rij gezet in een risicobeoordeling, met als resultaat een lijst van tien records met bewijsmateriaal. Hier kunnen nu vier records aan toegevoegd worden. Hieronder bevindt zich een vondst van de bruine weduwe L. geometricus, die recent voor het eerst in ons land werd vastgesteld, en een eerste geval van uitgekomen eitjes van een Latrodectus in ons land, van de roodrugspin L. hasselti.
    Keywords: Araneae ; Theridiidae ; Latrodectus ; Nederland ; exoot ; verspreiding ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
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    Eerste vondst van de vulkaanworm Maxmuelleria lankesteri in Nederland (Echiura) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.27
    Details
    Publication Date: 2018-12-13
    Description: In 2015 werd tijdens een monitoringsproject van mariene bodemfauna op het Friese front de vulkaanworm Maxmuelleria lankesteri aangetroffen. Dit is de eerste vondst in Nederlandse wateren. De vulkaanworm dankt zijn naam aan de vorm van de opening van zijn leefgang, een vulkaanachtige slibheuvel. Het is opmerkelijk dat deze grote, opvallende worm (12-18 cm lang) niet eerder is aangetroffen. Mogelijk ligt dit aan de ongebruikelijke bemonsteringsmethode. Anderzijds kan de vulkaanworm daadwerkelijk zeldzaam zijn.
    Keywords: Echiura ; Maxmuelleria lankesteri ; Nederland ; verspreiding ; herkenning ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 11
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    Recente waarnemingen van de kleine bleekvlekwespbij Nomada baccata (Hymenoptera: Apoidea: Apidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.95
    Details
    Publication Date: 2018-12-13
    Description: De kleine bleekvlekwespbij Nomada baccata behoort tot een complex van taxa rond de bleekvlekwespbij Nomada alboguttata. De kleine bleekvlekwespbij is vroeger verspreid over het land aangetroffen, maar de laatste waarneming dateerde alweer van 1992. In de afgelopen jaren werd de soort op twee plekken in ons land teruggevonden, in de Schoorlse duinen in Noord-Holland in 2012 en op de Tongerense hei bij Epe in Gelderland in 2015.
    Keywords: Hymenoptera ; Apidae ; Nomada baccata ; taxonomie ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 12
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    Vijfde aanvulling op de naamlijst van Nederlandse sluipvliegen (Diptera: Tachinidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.37
    Details
    Publication Date: 2018-12-13
    Description: De familie der sluipvliegen is één van de soortenrijkste vliegenfamilies in ons land. De larven ontwikkelen zich inwendig in ongewervelden, veelal vlinderrupsen. De groep is in ons land relatief goed bestudeerd en de afgelopen jaren zijn diverse aanvullingen op de checklist uit 2002 gepubliceerd. In dit artikel worden wederom twee soorten voor het eerst uit ons land vermeld. Hiermee komt het totaal aantal soorten dat in Nederland is vastgesteld op 336. Daarnaast wordt de herontdekking van een soort beschreven die al meer dan een eeuw niet meer waargenomen was.
    Keywords: Diptera ; Tachinidae ; Nederland ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 13
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    Een vlieg erbij en een familie minder; Canace nasica nieuw voor Nederland (Diptera: Canacidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.15
    Details
    Publication Date: 2018-12-13
    Description: Canacidae zijn gebonden aan de kust en zou je daarmee typisch Nederlandse vliegjes kunnen noemen. In dit artikel melden wij een nieuwe soort van deze familie: Canace nasica en presenteren we een nieuwe Nederlandse checklist voor de familie. Naar de nieuwste taxonomische inzichten wordt daarbij de familie Tethinidae als subfamilie onder de Canacidae toegevoegd. Hiermee is de Nederlandse fauna een vliegenfamilie armer.
    Keywords: Diptera ; Canacidae ; Canace nasica ; Nederland ; herkenning ; verspreiding ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 14
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    Grote populatie van de kassprinkhaan Diestrammena asynamora in Fries verpleeghuis (Orthoptera) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.11
    Details
    Publication Date: 2018-12-13
    Description: De kassprinkhaan is een buitenbeentje onder de Nederlandse sprinkhanen en krekels. Ze komt van oorsprong waarschijnlijk voor in grotten in Oost-Azië en is door transport van eieren met plantenmateriaal over de hele wereld verspreid geraakt. Ze kan tijdelijk overleven in het kunstmatig grotmilieu van bijvoorbeeld kruipruimtes van woonhuizen, in kassen en tuincentra. Recentelijk werd een opmerkelijk grote populatie van de kassprinkhaan gevonden in het uitgebreide stelsel aan kruipruimtes onder een verpleeghuis in Friesland. De kassprinkhaan blijkt hier al ruim 40 jaar voor te komen. Het is waarschijnlijk de grootste Europese populatie van deze soort.
    Keywords: Orthoptera ; Diestrammena asynamora ; verspreiding ; exoot ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 15
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    Nieuwe mosdiertjes van Noordzeewrakken (Bryozoa) (2016)
    In:  Nederlandse Faunistische Mededelingen (0196-2453) vol.46 (2016) p.43
    Details
    Publication Date: 2018-12-13
    Description: In het kader van het project ‘Duik de Noordzee Schoon’ worden scheepswrakken onderzocht, beschreven en van afval ontdaan. Scheepswrakken vormen een bijzonder leefgebied in het mariene milieu, met een hoge biodiversiteit. Dit bleek weer tijdens onderzoek van visnetten die van ver weg gelegen wrakken waren verwijderd. Hierbij werden maar liefst vier nieuwe mosdiertjes voor de Nederlandse fauna aangetroffen.
    Keywords: Bryozoa ; Nederland ; verspreiding ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 16
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    De weinigpoot Pauropus lanceolatus nieuw voor de Nederlandse fauna (Myriapoda: Pauropoda) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.43
    Details
    Publication Date: 2018-12-13
    Description: Pauropoda of weinigpoten zijn nauw verwant aan de miljoenpoten en duizendpoten. Het is een weinig bestudeerde diergroep, die bestaat uit kleine, witte en blinde bodemdieren die nauwelijks opvallen. Het meest kenmerkende zijn de gevorkte antennen, die wat bouw betreft uniek zijn ten opzichte van andere ongewervelden. Er zijn slechts acht soorten gemeld uit Nederland, alle behorend tot het genus Allopauropus. Recentelijk is een nieuwe soort, uit het genus Pauropus, in het westen van het land aangetroffen. Het betreft dus ook een nieuw genus voor de Nederlandse fauna. In dit artikel wordt de nieuwe soort voorgesteld, beschrijven we de habitat en geven we informatie over de verspreiding.
    Keywords: Myriapoda ; Pauropoda ; Pauropus lanceolatus ; Nederland ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 17
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    Slakkendodende vliegen uit de genera Pherbellia en Ditaeniella in Nederland (Diptera: Sciomyzidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.46 (2016) p.19
    Details
    Publication Date: 2018-12-13
    Description: Slakkendodende vliegen (familie Sciomyzidae) zijn al niet zo opvallend in het veld, maar de soorten uit de genera Pherbellia en Ditaeniella worden nog minder gevonden, mede doordat ze vrij klein zijn. De 14 Nederlandse soorten lijken sterk op elkaar. Dit artikel biedt een tabel om ze te kunnen herkennen en geeft informatie over ecologie en verspreiding.
    Keywords: Diptera ; Sciomyzidae ; Pherbellia ; Ditaeniella ; Nederland ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 18
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    Exotische landplatwormen in Nederland (Platyhelminthes: Tricladida) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.1
    Details
    Publication Date: 2018-12-13
    Description: Platwormen komen in Nederland vooral voor in zoet water, maar er zijn twee soorten van landbiotoop bekend. De laatste jaren duiken steeds vaker exotische landplatwormen op in Europa, vooral in kassen en tuincentra, maar sommige kunnen ook buitenshuis overleven. Uit Nederland zijn Bipalium kewense, Caenoplana bicolor en Marionfyfea adventor gemeld. Omdat ze regenwormen en slakken eten, kunnen ze een grote invloed hebben op het bodemleven, met gevolgen voor natuurlijke ecosystemen en landbouwgebieden. In het buitenland is de aandacht voor exotische landplatwormen al groeiende. Zo wordt de Nieuw-Guineese landplatworm Platydemus manokwari door de IUCN tot de 100 ergste invasieve soorten aangemerkt. In Nederland is er nog nauwelijks aandacht voor landplatwormen. Daarom wordt in dit artikel de kennis over deze groep samengevat.
    Keywords: Platyhelminthes ; Tricladida ; Nederland ; verspreiding ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 19
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    Duistere wespblaaskop Leopoldius calceatus nu ook in Nederland (Diptera: Conopidae) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.39
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    Publication Date: 2018-12-13
    Description: Blaaskopvliegen zijn een van de groepen uit het atlasproject Leuke vliegen, dat in 2015 werd afgesloten. Het zijn over het algemeen opvallend gekleurde vliegen, die parasiteren bij bijen en wespen. In een overzichtsartikel uit 2014 werd de komst van Leopoldius calceatus al voorspeld en in 2015 werd soort inderdaad aangetroffen in Groeve Craubeek in de provincie Limburg en een jaar later op de Stratumse heide bij Eindhoven.
    Keywords: Diptera ; Conopidae ; Nederland ; Leopoldius calceatus ; verspreiding ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 20
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    Provisional checklist of the astigmatic mites of the Netherlands (Acari: Oribatida: Astigmatina) (2016)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.47 (2016) p.49
    Details
    Publication Date: 2018-12-13
    Description: Astigmatic mites probably form the most diverse cohort of mites. At present the former order of Astigmatina is ranked within the suborder Oribatida or moss mites. However astigmatic mites occupy a much wider range of habitats than other oribatid mites: from marine coasts to stored food, plant bulbs and houses. The vast majority live as commensals or parasites on a variety of hosts, ranging from insects to birds and mammals, inhabiting the fur, feathers, skin and even lungs and stomach. This first checklist for the Netherlands contains 262 species, but many more are to be expected. Brief data on occurrence and nomenclature are provided for each species.
    Keywords: Acari ; Oribatida ; Astigmatina ; verspreiding ; taxonomie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 21
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    Intraspecific morphological variation of the scorpionfly Dicerapanorpa magna (Chou) (Mecoptera: Panorpidae) based on geometric morphometric analysis of wings (2016)
    In:  Contributions to Zoology (13834517) vol.85 (2016) nr.1 p.1
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    Publication Date: 2016-02-09
    Description: Wing shape variation was investigated between the sexes and among four populations of the scorpionfly Dicerapanorpa magna (Chou, 1981) endemic to the Qin-Ba Mountains area, China through the landmark-based geometric morphometric approach. The results show that sexual dimorphism exists both in wing size and shape in D. magna. Significant differences exist in female wing size and shape among D. magna populations. The possible reasons of the wing variation are discussed based on the divergence time of D. magna in combination with the tectonic and climatic events in the Qin-Ba Mountains during the late Miocene-Pleistocene period. Whether reproductive isolation exists between different populations needs further research.
    Keywords: canonical variates analysis ; individual variation ; sexual dimorphism ; 42.75 ; 42.62
    Repository Name: National Museum of Natural History, Netherlands
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  • 22
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    De springstaarten Folsomides angularis en F. parvulus nieuw voor de Nederlandse fauna (Hexapoda: Collembola: Isotomidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.57
    Details
    Publication Date: 2017-12-07
    Description: In Nederland zijn natuurlijke en semi-natuurlijke graslanden relatief slecht onderzocht op de aanwezigheid van springstaarten. In de ons omringende landen zijn deze biotopen vaak rijk aan specifieke soorten die alleen daar voorkomen. Naar verwachting kunnen in dit milieu veel nieuwe soorten voor onze fauna gevonden worden, vooral op nutriëntarme, zandige en droge ondergrond. Recentelijk zijn twee soorten uit het genus Folsomides in graslanden in het zuiden van ons land aangetroffen. Het betreft hier een nieuw genus voor de Nederlandse fauna. In dit artikel worden het genus en de twee soorten voorgesteld, beschrijven we de habitat en geven we informatie over de verspreiding en begeleidende soorten van deze springstaarten.
    Keywords: Collembola ; Isotomidae ; Folsomides ; verspreiding ; Nederland ; herkenning ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 23
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    De spichtige spitsbek Psilota exilistyla, een derde soort Psilota in Nederland (Diptera: Syrphidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.25
    Details
    Publication Date: 2017-12-07
    Description: Psilota is een genus van kleine, zwarte zweefvliegen, waarvan de larven leven achter boomschors. In 1988 werd Psilota anthracina voor het eerst in Nederland waargenomen en lange tijd is het een zeldzame soort geweest. De laatste jaren wordt ze steeds algemener, vermoedelijk door een veranderd bosbeheer. Gaandeweg is gebleken dat er een tweede soort onder schuilging; P. atra. Toen in België een derde soort opdook was het wachten tot deze ook in Nederland aangetroffen zou worden. In 2012 was het zover. Als Nederlandse naam stellen we voor spichtige spitsbek.
    Keywords: Diptera ; Syrphidae ; Psilota ; verspreiding ; Nederland ; herkenning ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 24
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    De exotische stofluis Badonnelia titei in Nederland (Psocodea: Sphaeropsocidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.51
    Details
    Publication Date: 2017-12-07
    Description: Het voorkomen van Badonnelia titei in ons land wordt in enkele publicaties genoemd. Deze exoot blijkt niet zeldzaam in archiefdepots overal in Nederland. In deze publicaties werd echter geen aandacht besteed aan het feit dat de soort nog niet als nieuw voor Nederland was gemeld, waar bewijsexemplaren zijn ondergebracht en hoe B. titei te herkennen is. De soort is daarom dan ook nooit doorgedrongen tot de diverse faunaoverzichten van Nederlandse stofluizen. Reden genoeg om deze zaken te behandelen in dit artikel, waarbij tevens een vindplaatsenkaartje wordt gegeven en de eerste vondsten uit woonhuizen worden gemeld.
    Keywords: Psocodea ; Sphaeropsocidae ; Badonnelia titei ; verspreiding ; Nederland ; exoot ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 25
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    De stronkmier Formica truncorum in het Ommense gebied (Hymenoptera: Formicidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.44 (2015) p.1
    Details
    Publication Date: 2017-12-07
    Description: De omgeving van Ommen en Hardenberg is het enige gebied in Nederland waar alle vier de soorten rode bosmieren voorkomen, waaronder de in Noordwest-Europa zeer zeldzame stronkmier. Recent is aan de alarmbel getrokken omdat het niet goed gaat met deze soort. Aanleiding voor een nieuw onderzoek bij Ommen, waarbij alle bosmieren onder de loep zijn genomen.
    Keywords: Hymenoptera ; Formicidae ; Formica ; verspreiding ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 26
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    Atypical mating in a scorpionfly without a notal organ (2015)
    In:  Contributions to Zoology (1875-9866) vol.84 (2015) nr.4 p.305
    Details
    Publication Date: 2015-12-07
    Description: Firm coupling of genitalia is critical for copulation in most groups of insects. To counter female resistance that usually breaks off genital connection, male scorpionflies (Mecoptera: Panorpidae) usually provide nuptial gifts for the female and seize their mates with grasping devices. The notal organ, a modified clamp on tergum III of male scorpionflies, plays a significant role in seizing the female wings and helping maintain mating position during copulation. The mating behaviour remains unknown for the scorpionfly Furcatopanorpa longihypovalva (Hua and Cai, 2009) whose male lacks a notal organ. In this paper, we first attempt to study the mating behaviour of F. longihypovalva. The results show that the male provides liquid salivary secretion through a mouth-to-mouth mode for the female, and maintains copulation mainly by continuous provision of salivary secretion rather than by seizing the female with grasping devices. Thus the male copulates with the female in an atypical O-shaped position, with only their mouthparts and genitalia connected to each other. The salivary glands exhibit remarkable sexual dimorphism: short and bifurcated in the female, but well-developed and multi-furcated in the male. The extremely developed salivary glands of the male lay a structural foundation for the male to continuously provide liquid salivary secretion, and to help the male to mediate female resistance, being likely to serve as a compensation to his absence of the notal organ. We also investigated the functional morphology and copulatory mechanism of the male and female genitalia. The evolution of the atypical mating pattern of F. longihypovalva is putatively discussed as an adaptation in the context of sexual conflict.
    Keywords: Mecoptera ; Panorpidae ; Furcatopanorpa longihypovalva ; mating behaviour ; nuptial feeding, ; salivary glands ; genitalia ; functional morphology ; copulation ; 42.75 ; 42.62
    Repository Name: National Museum of Natural History, Netherlands
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  • 27
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    Taxonomic utility of female copulation organs in Sericini chafers (Coleoptera, Scarabaeidae), with special reference to asymmetry (2015)
    In:  Contributions to Zoology (1875-9866) vol.84 (2015) nr.2 p.167
    Details
    Publication Date: 2015-11-10
    Description: Female genitalia are widely underrepresented in taxonomic studies. Here we investigate the morphological variation among female copulation organs for a group of scarab beetles (Sericini) with similar ecology, external morphology and copulation mechanics. We examined traits qualitatively and quantitatively based on 80 and 18 species (genus Pleophylla), respectively. Additionally we explored whether female genitalia are affected by asymmetry. The vast diversity of slerotised structures including their shapes illustrated the high taxonomic and phylogenetic utility of female genitalia in this group. The morphometric analysis of Pleophylla, confirmed that sclerotisations in the ductus bursae are very suitable for species-level taxonomic purposes. Stable interspecific variation is more hardly discernable in other parts such as the vaginal palps (shape and size) or the other membranous structures such as the shape of the bursa copulatrix. Asymmetric genitalia that arose multiple times independently among insects are found in most of the examined Sericini species. Asymmetries regarded either the bursa copulatrix, or both the bursa copulatrix and ductus bursae and comprised sclerotised and non-sclerotised structures being most common in modern Sericini. Here, highly asymmetric sclerotised structures are linked with strong asymmetry of the male copulation organs. Widespread asymmetry among megadiverse Sericini with a complex male-female genital asymmetry suggests that the shift to asymmetry is phylogenetically rather conserved. From the range of hypotheses, sexual selection seems to be the most reasonable to explain the evolution and stability of asymmetry in chafer genitalia.
    Keywords: beetles ; female genitalia ; integrative taxonomy ; Melolonthinae ; morphology ; 42.75 ; 42.64 ; 42.62
    Repository Name: National Museum of Natural History, Netherlands
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  • 28
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    Exapion ulicis, een nieuwe snuitkever voor de Nederlandse fauna (Coleoptera: Brentidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.39
    Details
    Publication Date: 2017-12-07
    Keywords: Coleoptera ; Brentidae ; Exapion ulicis ; verspreiding ; Nederland ; herkenning ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 29
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    De eikelworm Saccoglossus cf. horsti in de Oosterschelde (Enteropneusta) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.44 (2015) p.11
    Details
    Publication Date: 2017-12-07
    Description: Eikelwormen zijn mariene wormen die een eigen klasse vormen, de Enteropneusta. In Nederland zijn het ook de enige vertegenwoordigers van de kraagdragers (fylum Hemichordata). Het zijn bijzondere dieren, die nauwer verwant zijn aan stekelhuidigen en gewervelde dieren dan aan gelede wormen. Het lichaam is ongeleed, met een gesteelde slurf, met daarachter een kraag en een langwerpig lichaam met tientallen kieuwspleten. De wormen leven in een U-vormige buis in zachte bodems. In de loop van de tijd zijn wel eikelwormen langs de Nederlandse kust verzameld, maar deze zijn nooit op naam gebracht. In dit artikel wordt ingegaan op de eerste vondsten van eikelwormen in de Oosterschelde.
    Keywords: Enteropneusta ; Saccoglossus ; verspreiding ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 30
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    Annotated checklist of the gall midges from the Netherlands, Belgium and Luxembourg (Diptera: Cecidomyiidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.44 (2015) p.47
    Details
    Publication Date: 2017-12-07
    Description: The gall midges are one of the most important groups of gall makers. Emerging larvae produce stimuli and the host plant responds by producing galls, fascinating structures which provide food and shelter for the developing larvae. Most gall inducing midges are host specific: they are only able to induce galls in a few, often related, plant species. A few species have different feeding modes: among them are saprophagous, fungivorous and predaceous species and some are used in biocontrol. We recorded 416 species in the whole area; 366 species are recorded from the Netherlands, 270 species from Belgium and 96 species from Luxembourg.
    Keywords: Diptera ; Cecidomyiidae ; Netherlands ; Belgium ; Luxembourg ; distribution ; biology ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 31
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    Invasieve walnootboorvlieg Rhagoletis completa nu ook in Nederland (Diptera: Tephritidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.19
    Details
    Publication Date: 2017-12-07
    Description: Het gebeurt met enige regelmaat dat er boorvliegen versleept worden met plantaardige producten. De meeste schadelijke soorten komen uit de tropen en kunnen zich niet handhaven in Nederland. Noord-Amerikaanse soorten van het genus Rhagoletis kunnen in het klimatologisch vergelijkbare Europa wel voet aan de grond krijgen. Eerder bleek dit al met de Oost-Amerikaanse kersenboorvlieg en nu staat hetzelfde te gebeuren met de walnootboorvlieg.
    Keywords: Diptera ; Tephritidae ; Rhagoletis completa ; verspreiding ; herkenning ; Nederland ; exoot ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 32
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    Aantekeningen bij de biologie van de graafwesp Psenulus fuscipennis (Hymenoptera: Crabronidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.13
    Details
    Publication Date: 2017-12-07
    Description: Door gebruik te maken van observatiekunstnestjes is het mogelijk om regelmatig een kijkje te nemen in de nesten van bijvoorbeeld graafwespen. Zij gebruiken de nesten om zich voort te planten. Zo kunnen we meer te weten komen over hun gedrag in het nest tijdens de voortplanting. In dit artikel worden de ervaringen met de graafwesp Psenulus fuscipennis beschreven. De verschillen in levenswijze met de kleine zeefwesp en bijenwolf worden toegelicht.
    Keywords: Hymenoptera ; Crabronidae ; Psenulus fuscipennis ; biologie ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 33
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    De gele tubebij Stelis signata op de weg terug (Hymenoptera: Apoidea: Megachilidae)? (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.7
    Details
    Publication Date: 2017-12-07
    Description: De gele tubebij Stelis signata was sinds 1977 niet meer in ons land aangetroffen. Men dacht daarom dat deze bij uit ons land verdwenen was. In 2013 werd de soort echter op Waarneming.nl gemeld van de Strabrechtse hei en in 2014 van Afferden. In 2015 werd een vrouwtje gevangen op de Sprengenberg op de Sallandse heuvelrug. In 2011 heeft Natuurmonumenten hier kleinschalige maatregelen uitgevoerd voor specifieke heidesoorten, waaronder de aanleg van een flink aantal steilranden. Het microreliëf dat daarbij ontstaat vormt een belangrijke nestelplaats voor bijen en wespen. De vondst van de zeldzame gele tubebij op een van deze steilranden vormt de kroon op het werk.
    Keywords: Hymenoptera ; Megachilidae ; Stelis signata ; verspreiding ; biologie ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 34
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    Diplocoelus fagi nieuw voor de fauna van Nederland (Coleoptera: Biphyllidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.44 (2015) p.37
    Details
    Publication Date: 2018-12-13
    Description: In 2007 werd Diplocoelus fagi bij Wageningen gevonden. De larven van deze kever leven in dood hout. Na de eerste vondst zijn diverse andere waarnemingen gedaan en D. fagi is nu bekend uit vier provincies. Omdat de soort in de omringende landen al lang bekend was, is deze late ontdekking opmerkelijk. Mogelijk hangt dit samen met het verbeterde bosbeheer, waarbij minder dood hout uit de bossen wordt verwijderd.
    Keywords: Coleoptera ; Biphyllidae ; Diplocoelus fagi ; verspreiding ; Nederland ; biologie ; herkenning ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 35
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    The snail-killing fly Salticella fasciata new for the Netherlands, with an update of Belgian records (Diptera: Sciomyziidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (42.75) vol.44 (2015) p.29
    Details
    Publication Date: 2017-12-07
    Description: The snail-killing fly Salticella fasciata was discovered in Belgium in 2010. Since then, several new localities on the Belgian coast were discovered and in 2014, the first record for the Netherlands was found. This is the first representative of the genus and also of the subfamily Salticellinae in the Netherlands. In this paper, records from Belgium and the Netherlands are reviewed and information on biology and habitats is summarised.
    Keywords: Diptera ; Sciomyziidae ; Salticella fasciata ; Nederland ; België ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 36
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    De hooiwagen Nelima gothica nieuw voor Nederland (Opiliones) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.44 (2015) p.17
    Details
    Publication Date: 2017-12-07
    Description: Twaalf jaar geleden waren er nog geen Nelima-soorten bekend uit ons land. In 2004 en 2006 werden respectievelijk N. sempronii en N. doriae ontdekt. Beide soorten komen ten zuidoosten van ons land voor, en hebben naar alle waarschijnlijkheid Nederland recent bereikt. In 2012 werd op de Maasvlakte een derde vertegenwoordiger van dit genus gevonden: Nelima gothica. De vindplaats lijkt te wijzen op introductie door de mens. Gezien het voorkomen in de ons omringende landen is echter niet uit te sluiten dat hij van oudsher tot onze fauna behoort of recent op eigen kracht Nederland heeft bereikt. Hij zou op meer plaatsen langs de kust kunnen voorkomen. We presenteren de nieuwe soort en geven een overzicht van de vier Noordwest-Europese Nelima-soorten.
    Keywords: Opiliones ; Nelima ; verspreiding ; Nederland ; Europa ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 37
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    De goudwesp Chrysis equestris nieuw voor Nederland (Hymenoptera: Chrysididae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.1
    Details
    Publication Date: 2018-12-13
    Description: Goudwespen zijn fraaie insecten, met felle metaalkleuren in de tinten rood, groen en blauw. Ze parasiteren vaak bij bijen en angeldragende wespen. In dit artikel wordt de eerste vondst van Chrysis equestris voor Nederland beschreven, waarmee het aantal in Nederland gevonden soorten nu op 57 komt. Deze goudwesp parasiteert bij de plooivleugelwesp Discoelius zonalis. Ze wordt in haar hele areaal weinig gevangen.
    Keywords: Hymenoptera ; Chrysididae ; Chrysis equestris ; verspreiding ; biologie ; herkenning ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 38
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    Oribatid mites in the Flevopark in Amsterdam (Acari: Oribatida) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.91
    Details
    Publication Date: 2017-12-07
    Description: The Flevopark is one of the most special green areas of Amsterdam with a rich nature. Twelve oribatid mite species were collected here in 2014 from bark and mosses on trees. Liacarus acutus and Perlohmannia dissimilis are reported for the first time from the Netherlands. It is not clear if the newly recorded species have always been overlooked or are recent immigrants.
    Keywords: Acari ; Oribatida ; distribution ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 39
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    Acht nieuwe soorten watermijten voor de Nederlandse fauna (Acari: Hydrachnidia) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.77
    Details
    Publication Date: 2017-12-07
    Description: Watermijten zijn kleine spinachtige diertjes, die in zoet water leven. De aandacht voor deze diergroep is groot, omdat ze een rol spelen in de waterkwaliteitsbeoordeling. In de verspreidingsatlas uit 2000 worden 234 Nederlandse watermijten gemeld. Sinds die tijd worden regelmatig aanvullingen gerapporteerd. In dit artikel worden weer acht nieuwe soorten gemeld, wat het totaal nu op 266 brengt. Dit is een opmerkelijke toename van 13 % in 15 jaar.
    Keywords: Acari ; Hydrachnidia ; verspreiding ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 40
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    Nieuwe soorten watervlooien in Nederland (Crustacea: Branchiopoda: Cladocera) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.67
    Details
    Publication Date: 2017-12-07
    Description: De publicatie van de naamlijst van de Nederlandse kieuwpootkreeften in 2002 was een grote stimulans voor nieuw onderzoek. Na de publicatie met aanvullingen in 2009 zijn er weer negen soorten bijgekomen, waarmee het totaal aantal soorten kieuwpootkreeften in Nederland nu op 124 komt. In dit artikel worden de nieuwe soorten besproken en wordt ingegaan op de redenen voor deze opmerkelijke uitbreiding.
    Keywords: Crustacea ; Branchiopoda ; Cladocera ; Nederland ; verspreiding ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 41
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    De prachtvlieg Homalocephala biumbrata nieuw voor Nederland (Diptera: Ulidiidae) (2015)
    In:  Nederlandse Faunistische Mededelingen (0169-2453) vol.45 (2015) p.33
    Details
    Publication Date: 2017-12-07
    Description: Prachtvliegen zijn vrij kleine vliegen die vaak een vleugeltekening hebben waardoor ze aan boorvliegen doen denken. De meeste soorten zijn weinig opvallend in het veld aanwezig en zitten vooral op hun waardplanten. Alleen de soorten waarvan de larven leven onder schors van boomstammen zijn opvallender aanwezig door hun balts of territoriaal gedrag. Ze proberen hun stukje boomstam te claimen door snel op en neer te lopen en tegelijkertijd driftig met hun vleugels te bewegen. Tot nog toe was de zeer fraaie Myennis octopunctata (Coquebert, 1798) de enige houtbewonende prachtvlieg in Nederland. In dit artikel wordt daar Homalocephala biumbrata aan toegevoegd.
    Keywords: Diptera ; Ulidiidae ; Homalocephala biumbrata ; verspreiding ; Nederland ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 42
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    An integrated approach to delimiting species borders in the genus Chrysotoxum Meigen, 1803 (Diptera: Syrphidae), with description of two new species (2015)
    In:  Contributions to Zoology (1875-9866) vol.84 (2015) nr.4 p.285
    Details
    Publication Date: 2015-11-07
    Description: Integrative taxonomy tests the validity of taxa using methods additional to traditional morphology. The existence of two different morphotypes in specimens identified as Chrysotoxum vernale Loew (Diptera: Syrphidae) prompted their taxonomic study using an integrative approach that included morphology, wing and male-surstylus geometric morphometrics, genetic and ecological analyses. As a result, a new species is recognised, Chrysotoxum montanum Nedeljković & Vujić sp. nov., and C. vernale is re-defined. A lectotype and paralectotypes are designated for C. vernale to stabilize this concept. An additional species, Chrysotoxum orthostylum Vujić sp. nov., with distinctive male genitalia is also described. The three species share an antenna with the basoflagellomere shorter than the scape plus pedicel and terga with yellow fasciae not reaching the lateral margins. This study confirms the value of integrative approach for resolving species boundaries.
    Keywords: Balkan Peninsula ; C. montanum sp. nov. ; C. orthostylum sp. nov. ; ecological niche ; geometric morphometry ; lectotype ; mtDNA COI sequences ; Syrphinae ; 42.75 ; 42.64 ; 42.62
    Repository Name: National Museum of Natural History, Netherlands
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  • 43
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    A new species of Allobracon Gahan (Braconidae: Hormiinae) from Brazil, and the first record of green Hormiinae (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.241
    Details
    Publication Date: 2015-06-03
    Description: A new species of the genus Allobracon Gahan, 1915, from Brazil is described and illustrated. It is the first green species of the genus and of the subfamily known. A key to the species is added.
    Keywords: Allobracon ; Hymenoptera ; Braconidae ; Hormiinae ; Brazil ; neotropical ; new species ; key ; green pigmentation ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 44
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    Revision of the genus Paratropus Gerstaecker (Coleoptera: Histeridae). II. Supplement (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.181
    Details
    Publication Date: 2007-01-18
    Description: A supplement to the “Revision of the genus Paratropus Gerstaecker” (Kanaar, 1997) is given. Additional faunistic data are presented. The following four new species are described and figured: P. angulifrons (Malaysia: Sabah), P. strigosus (Cameroon, Ghana), P. tenuis (Indonesia: Sumatra) and P. transvalensis (South Africa: Transvaal).
    Keywords: Coleoptera ; Histeridae ; Paratropus ; Termitophiles ; Myrmecophiles ; Africa ; Oriental region ; new species ; 42.75
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  • 45
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    A new species of Phaenocarpa Foerster (Hymenoptera: Braconidae: Alysiinae) from Brazil (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.123
    Details
    Publication Date: 2007-01-18
    Description: A new species of the genus Phaenocarpa Foerster (Hymenoptera: Braconidae: Alysiinae: Alysiini) from the Atlantic rainforest in Brazil is described and illustrated.
    Keywords: Braconidae ; Alysiinae ; Alysiini ; Phaenocarpa ; Neotropical ; Brazil ; atlantic forest ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 46
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    Notes on the genus Mama Belokobylskij (Hymenoptera: Braconidae: Euphorinae), and on the use of monotype taxa (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.451
    Details
    Publication Date: 2007-01-18
    Description: The genus Mama Belokobylskij, 2000 (Braconidae; Euphorinae) is re-assessed and the type species is compared with three similar species: Microctonus cephalicus Provancher, 1886, Microctonus reclinator Ruthe, 1856, and Euphorus spiniscapus Muesebeck, 1936. The results are discussed in relation to the use of taxa based on one specimen (“monotype taxa”). Problems concerning our knowledge of important groups of Euphorinae are outlined. The context of the peculiarly tangled taxonomical situation, which this paper deals with, is considered to be widespread in parasitoid taxonomy, and should be borne in mind in current studies of parasitoid biodiversity assessment.
    Keywords: Mama Belokobylskij ; Microctonus cephalicus Provancher ; Euphorus spiniscapus Muesebeck ; Microctonus reclinator Ruthe ; monotypic genera ; monotype taxa ; biodiversity ; 42.75
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  • 47
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    Two new species of Pambolus Haliday (Hymenoptera: Braconidae: Pambolinae) from Argentina (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.337
    Details
    Publication Date: 2007-01-18
    Description: Two new species of the genus Pambolus Haliday, 1836, (P. leponcei spec. nov., and P. pilcomayensis spec. nov.; Braconidae: Pambolinae) from Argentina are described and illustrated.
    Keywords: Braconidae ; Pambolinae ; Pambolus ; Neotropical ; Argentina ; new species ; partial key ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 48
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    Bitomoides gen. nov. (Hymenoptera: Braconidae: Opiinae) from Europe (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.331
    Details
    Publication Date: 2007-01-18
    Description: Bitomoides gen. nov. (type species: Bitomus latus Papp, 1999) is described and illustrated. In addition Phaedrotoma recondes spec. nov. and Chelonus lukasi nom. nov. are validated.
    Keywords: Hymenoptera ; Braconidae ; Opiinae ; Bitomoides ; Orientopius ; Opius ; Phaedrotoma ; Microchelonus ; Chelonus ; Palaearctic ; Europe ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 49
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    In memoriam Dirk Noordam (2004)
    In:  Zoologische Verhandelingen vol.346 (2004) p.1
    Details
    Publication Date: 2007-01-22
    Keywords: Dirk Noordam ; in memoriam ; bibliography ; 42.75
    Repository Name: National Museum of Natural History, Netherlands
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  • 50
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    A new species of the genus Aleiodes Wesmael from New Zealand (Hymenoptera: Braconidae: Rogadinae) (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.301
    Details
    Publication Date: 2007-01-18
    Description: A new species of the genus Aleiodes Wesmael, 1838 (Braconidae: Rogadinae: Rogadini), A. declanae spec. nov. from New Zealand is described and illustrated. It has been reared from Declana floccosa Walker, Cleora scriptaria (Walker), Pseudocoremia suavis Butler and P. fenerata Felder & Rogenhofer (Geometridae: Ennominae.
    Keywords: Hymenoptera ; Braconidae ; Rogadinae ; Aleiodes ; New Zealand ; Australasian ; Oriental ; East Palaearctic ; new species ; distribution ; partial key ; Geometridae ; Ennominae ; Declana floccosa ; Pseudo-coremia suavis ; Pseudocoremia fenerata ; 42.75
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  • 51
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    Goellneriana deckerti gen. nov. & spec. nov. (Heteroptera: Reduviidae: Phymatinae: Macrocephalini) from Namibia, with a review of the Afrotropical ambush bugs (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.147
    Details
    Publication Date: 2015-06-03
    Description: Goellneriana deckerti gen. nov. & spec. nov. (Heteroptera: Reduviidae: Phymatinae: Macrocephalini) from Namibia is described and illustrated. Keys to the tribes and to the Afrotropical genera and species of the subfamily Phymatinae are included, a checklist and a distribution map of the Afrotropical ambush bugs is added.
    Keywords: Insecta ; Heteroptera ; Reduviidae ; Phymatinae ; Goellneriana deckerti ; new genus ; new species ; Namibia ; list of Afrotropical Phymatinae ; distribution ; 42.75
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  • 52
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    New species of the genera Megischus Brullé and Stephanus Jurine from China (Hymenoptera: Stephanoidea: Stephanidae), with a key to world species of the genus Stephanus (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.101
    Details
    Publication Date: 2007-01-18
    Description: Three new species of the genera Megischus Brullé and Stephanus Jurine from China (Hymenoptera: Stephanoidea: Stephanidae) are described, illustrated and keyed. Megischus ptosimae Chao, 1964, from Fujian is redescribed and the specimen from India described as M. ptosimae Chao by van Achterberg (2002) is renamed as M. alveolifer spec. nov. and the Malaysian specimen of M. ducalis Westwood listed by van Achterberg (2002) is described as M. ducaloides spec. nov. M. ducalis Westwood, 1851, is reported for the first time from Cambodia, which is the first report after its description. A key to world species of the genus Stephanus is provided.
    Keywords: Hymenoptera ; Stephanoidea ; Stephanidae ; Megischus ; Stephanus ; China ; Oriental ; Palaearctic ; new species ; keys ; Buprestidae ; Cerambycidae ; 42.75
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  • 53
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    Phylogeny and biogeography of the genus Taractrocera Butler, 1870 (Lepidoptera: Hesperiidae), an example of Southeast Asian-Australian interchange (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.383
    Details
    Publication Date: 2007-01-18
    Description: The genus Taractrocera is distributed throughout the Oriental and Australian Regions. It contains 16 species, of which two, T. fusca and T. trikora, are described as new in this paper. All species are briefly characterized and the new species are described in full. The phylogeny of the genus is inferred, based on an analysis of morphological and genital characters, both of males and females. The biogeography of the genus is discussed in relation to the phylogeny. The genus has an Australian origin. After some diversification in Australia it dispersed into Asia, in or before the Miocene. It dispersed in the reverse direction, probably before the late-Miocene emergence of the Banda Arc and the Moluccas, 5-6 Mya. Three species are adapted to high altitude, one in the Himalayas and two in New Guinea. Apparently the adaptations occurred independently in the two areas. In New Guinea the high altitude species may have simply been carried up by the Pleistocene and recent uplift of the mountains. Possibly helped by the lowering of the sea-level several times during the Pleistocene, one Australian species colonized some of the Lesser Sunda Islands relatively recently.
    Keywords: Lepidoptera ; Hesperiidae ; Taractrocera ; systematics ; phylogeny ; biogeography ; Indo-australia ; 42.75
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  • 54
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    Neptihormius gen. nov. (Hymenoptera: Braconidae: Hormiinae), a parasitoid of Nepticulidae (Lepidoptera) from New Zealand (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.291
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    Publication Date: 2007-01-18
    Description: Neptihormius gen. nov. (type species Neptihormius stigmellae spec. nov. from New Zealand) is described and illustrated. It is a parasitoid of Nepticulidae and the first record of Nepticulidae as host for a member of the subfamily Hormiinae and of basal cyclostome Braconidae.
    Keywords: Hymenoptera ; Braconidae ; Hormiinae ; Neptihormius ; New Zealand ; new genus ; new species ; Australasian ; 42.75
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  • 55
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    New Indo-Australian subgenera and species of the genera Xynobius Foerster and Ademoneuron Fischer (Hymenoptera: Braconidae: Opiinae) (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 18-28 (2004) p.313
    Details
    Publication Date: 2007-01-18
    Description: Two new subgenera of the genus Xynobius Foerster, 1862, from the Southern Hemisphere are described and illustrated: Paraxynobius (type species Xynobius granulatus spec. nov. from New Zealand), and Sulcynobius (type species X. latisulcus spec. nov. from Sulawesi). One new species of the genus Ademoneuron Fischer, 1988, is added: A. yasirae spec. nov. from Indonesia (Halmahera).
    Keywords: Hymenoptera ; Braconidae ; Opiinae ; Xynobius ; Paraxynobius ; Sulcynobius ; Atormus ; Ademoneuron ; New Zealand ; Indonesia ; Sulawesi ; Halmahera ; new subgenus ; new species ; Australian ; Wallacean ; 42.75
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  • 56
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    Venom gland and reservoir morphology of the genus Pseudoyelicones van Achterberg, Penteado-Dias & Quicke (Hymenoptera: Braconidae: Rogadinae) and implications for relationships (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.119
    Details
    Publication Date: 2007-01-18
    Description: The venom apparatus of Pseudoyelicones nigriscutum van Achterberg, 1997 (Braconidae: Rogadinae) is described and illustrated. The venom apparatus morphology of Pseudoyelicones is closely related to that of Bulborogas van Achterberg. Therefore, we propose a sister group relationship between these two genera.
    Keywords: Pseudoyelicones ; venom apparatus ; Bulborogas ; Yelicones ; phylogeny ; 42.75
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  • 57
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    Revison of the Euagathis species (Hymenoptera: Braconidae: Agathidinae) from Wallacea and Papua (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.1
    Details
    Publication Date: 2007-01-18
    Description: The species of the genus Euagathis Szépligeti, 1900 (Braconidae: Agathidinae) from Wallacea and Papua (including Northeast Australia and Solomon Islands) are revised and keyed. Thirty-three species are recognized, of which 11 are new: Euagathis brevitibialis spec. nov. from Papua New Guinea; E. dejongi spec. nov. from Indonesia (Sulawesi); E. fuscistigma spec. nov. from Papua New Guinea; E. kendariensis spec. nov. from Indonesia (Sulawesi); E. maculata spec. nov. from Papua New Guinea; E. mellifacies spec. nov. from Papua New Guinea (Bougainville Island); E. mellisoma spec. nov. from Indonesia (Papua); E. minutoides spec. nov. from Indonesia (Sulawesi); E. novabritanica spec. nov. from Papua New Guinea (New Britain); E. raymondi spec. nov. from Indonesia (Papua); and E. toxopeusi spec. nov. from Indonesia (Papua). Euagathis maculipennoides nom. nov. is a new name for Euagathis maculipennis Szépligeti, 1902, not Brullé, 1846. Agathis etnaella Cameron, 1907, is a new synonym of Cremnops variceps (Cameron, 1907) and Euagathis papua Cameron, 1906, of E. novaguineensis Szépligeti, 1900. New combinations are: Biroia cameroni (Enderlein, 1920); Cremnops papuana (Cameron, 1907); C. varipilosella (Cameron, 1911); C. variceps (Cameron, 1907); and Zelomorpha maculipes (Cameron, 1911).
    Keywords: Braconidae ; Agathidinae ; Disophrini ; Euagathis ; key ; distribution ; synonyms ; Indo-Australian ; Oriental ; Sulawesi ; Moluccas ; New Guinea ; Papua ; Australia ; 42.75
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  • 58
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    Six new genera of Braconidae (Hymenoptera) from China (2004)
    In:  Zoologische Mededelingen (00240672) vol.78, 1-16 (2004) p.77
    Details
    Publication Date: 2015-06-03
    Description: Six new genera of the family Braconidae (Hymenoptera) from China are described and illustrated: two genera of the subfamily Agathidinae: Facilagathis gen. nov. (type species: F. spinulata spec. nov.) and Cremnoptoides gen. nov. (type species: Cremnops pappi Sharkey, 1994); one genus of the subfamily Helconinae: Mangshia gen. nov. (type species: M. elongata spec. nov.); two genera of the subfamily Pambolinae: Plesiocedria gen. nov. (type species: P. intermediata spec. nov.) and Apocedria gen. nov. (type species: A. nodifer spec. nov.) and one genus belonging to the subfamily Opiinae: Opiolastes gen. nov. (type species: O. hei spec. nov.). In addition two new species are described: Facilagathis macrocentroides spec. nov. from Zhejiang and Cremnoptoides furcatus spec. nov. from Jilin.
    Keywords: Braconidae ; Agathidinae ; Agathidini ; Disophrini ; Helconinae ; Pambolinae ; Cedriini ; Pambolini ; Opiinae ; Opiini ; Facilagathis ; Cremnoptoides ; Mangshia ; Apocedria ; Plesiocedria ; Opiolastes ; key ; distribution ; Oriental ; Palaearctic ; China. ; 42.75
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  • 59
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    Nieuwe en minder bekende vlokreeftjes van sublitorale harde bodems in het Deltagebied (Crustacea: Amphipoda: Gammaridea) (2000)
    In:  Nederlandse Faunistische Mededelingen (01692453) vol.11 (2000) p.19
    Details
    Publication Date: 2007-01-10
    Description: New and lesser-known amphipods of hard substrates in the Delta area of the Netherlands (Crustacea: Amphipoda: Gammaridea) The distribution of 27 new and lesser-known amphipod species of sublittoral hard substrates in the Delta area in the southwest of The Netherlands is described. Data from literature on these species are scarce and/or not readily available. They are supplemented with results from recent investigations of mainly sublittoral hard substrates. Of the 22 marine species only nine occur offshore as well as inshore. The others seem to be restricted to inshore man-made coastline protections. This probably reflects the scarcity of hard substrates further offshore. Four invasive species were recorded in the brackish and freshwater part of the Delta area, two of them of pontocaspian origin.
    Keywords: Arthropoda ; Amphipoda ; Gammaridea ; Nederland ; Verspreiding ; Biotopen ; Herkenning ; 42.75
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  • 60
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    De opmars van de wespenspin Argiope bruennichi in Nederland (Araneae: Araneidae) (2000)
    In:  Nederlandse Faunistische Mededelingen (01692453) vol.11 (2000) p.45
    Details
    Publication Date: 2007-01-10
    Description: The expansion of the range of the spider Argiope bruennichi in the Netherlands (Araneae: Araneidae) Argiope bruennichi (Scopoli, 1772) is one of the biggest and most colourful spiders in Europe and therefore easy to recognise, even by non-specialists. The species has expanded its range in Germany and Belgium for several decades now and reached the south of The Netherlands in 1980. After the discovery of the first female in the south of the province of Limburg more specimens were found in this region in subsequent years. Later the species was discovered near Herkenbosch, about 30 kilometres to the north. Over the last years the expansion continued rapidly and now almost 300 records are brought together. The species has become widespread in the southern and eastern part of The Netherlands. In 1995 a leap of some 70 kilometres was made, from Limburg to the southern parts of the Veluwe. The years 1998 and 1999 were very good for Argiope, both with over 80 records per year. It is suggested that this expansion is related to the warm and sunny summers in the nineties.
    Keywords: Arthropoda ; Araneae ; Araneidae ; Argiope bruennichi ; Wespenspin ; Wespspin ; Tijgerspin ; Nederland ; Verspreiding ; Biotopen ; Uitbreiding ; Fenologie ; 42.75
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  • 61
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    Nesten van de reuzenmier Camponotus ligniperda in het noordwesten van haar verspreidingsgebied (Hymenoptera: Formicidae) (2000)
    In:  Nederlandse Faunistische Mededelingen (01692453) vol.11 (2000) p.13
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    Publication Date: 2007-01-10
    Description: Nests of the carpenter ant Camponotus ligniperda in the northwestern part of its range (Hymenoptera: Formicidae) Camponotus ligniperda (Latreille, 1802) is a rare ant species restricted to the eastern part of the Netherlands. Most records relate to a low number of workers. In this paper the species is reported for the first time from the province of Drenthe. Some ecological features of the groundnest are compared with the only other recent nest in the Netherlands. Both nests are located under a decidious tree which protects them from excessive precipitation. In contrast with reports from Germany and Sweden, nesting sites in buildings and houses are not known. It is suggested that the low chances for settlement in our country are due to the wet atlantic climate as well as competition with larger Formica species.
    Keywords: Insecta ; Hymenoptera ; Formicidae ; Camponotus ligniperda ; Nederland ; Verspreiding ; Biotopen ; 42.75
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  • 62
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    Precise determination of the distances of galaxies (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: The use of the Space Telescope in the determination of the distances of galaxies is examined. The Space Telescope can check the local extragalactic distance scale to within 10-15 percent. The determination of relative distances of cosmic standard candles, viz. brightest M-supergiants and SNe I in E galaxies, is discussed. The M-supergiants map the velocity field out to v sub o approx. 3000 km s(-1) thus providing a firm basis for the determination of H sub o (global) from local distances, and the possibility to derive precise distances of all nearby field galaxies from their recession velocities. Photometry of the SNe I out to z = 0.5 leads to a direct determination of q sub o via the Hubble diagram, and the form of their light curves offers a fundamental test on the nature of redshifts. Other calculations are discussed.
    Keywords: ASTROPHYSICS
    Type: NASA. Marshall Space Flight Center Sci. Res. with the Space Telescope; p 263-293
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  • 63
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    Requirements for predictions and real-time monitoring for the study of travelling interplanetary phenomena (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: Physical processes within quiescent as well as disturbed flows of solar wind plasma, energetic particles, and magnetic and electric fields from the Sun are considered. Specifically, travelling interplanetary phenomena to be studied during the years of the solar maximum of solar cycle 21 are covered. It is noted that predictions, while needed for long range, logistical planning, is secondary to the requirements of synoptic real time monitoring over a wide range of particle energies and spectral bandwidths.
    Keywords: ASTROPHYSICS
    Type: NASA. Marshall Space Flight Center Solar-Terrest. Predictions Proc., Vol. 2; p 340-345
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  • 64
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    The problems of cosmology (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: Three examples that illustrate the expected role of the Space Telescope in cosmological investigations are described addressing the distribution of globular star clusters, universe expansion, and other classical cosmological problems.
    Keywords: ASTROPHYSICS
    Type: NASA. Marshall Space Flight Center Sci. Res. with the Space Telescope; p 295-312
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  • 65
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    The central regions of active galaxies and quasars (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: Theories describing the central regions of nonthermal extragalactic sources (radio galaxies, Seyfert nuclei, quasars, etc.) are examined in the light of the experimental possibilities afforded by the Space Telescope. In particular, the theory which proposes the accretion of stars or gas onto a black hole as the explanation of the central engine is discussed. Planned observations directed towards the problem of the mass, size, and structure of the central engine, and the phenomenological questions regarding the general environment of the central engine are outlined.
    Keywords: ASTROPHYSICS
    Type: NASA. Marshall Space Flight Center Sci. Res. with the Space Telescope; p 197-214
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  • 66
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    Luminosity functions and evolution of globular clusters (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: The stellar dynamics of globular clusters are addressed in terms of luminosity functions, chemical topics, and dynamical topics
    Keywords: ASTROPHYSICS
    Type: NASA. Marshall Space Flight Center Sci. Res. with the Space Telescope; p 139-150
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  • 67
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    The X-ray spectrum of 3C 273 (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 232
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  • 68
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    Interstellar C2 molecules toward Zeta Persei (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: A search for absorption by interstellar C2 molecules, conducted at the (2-0) Phillips band near 8760 A, is reported for three stars. No interstellar absorption is seen in the spectra of 20 Tau and Epsilon Aur, at upper limits of approximately 5 mA and 1 mA, respectively. Toward Zeta Per, however, the R(0), Q(2), and Q(4) lines are detected, and a useful upper limit on the Q(6) line is obtained. The resulting column density, 1.4 x 10 to the 13th to 2.0 x 10 to the 13th per sq cm, and the excitation temperature, T = (78 plus or minus 25) K, show acceptable agreement with an existing theoretical model of the absorbing cloud.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 232
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    Galaxies and gamma-ray astronomy (1979)
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    Publication Date: 2011-08-17
    Description: The nature of the high-energy spectra of several types of active galaxies and their contribution to the measured diffuse gamma-ray emission between 1 and 150 MeV are considered, using X-ray spectra of active galaxies and SAS 2 data regarding the intensity upper limits to the gamma-ray emission above 35 MeV. It is found that a substantial increase in slope of the photon energy spectrum must occur in the low energy gamma-ray region for Seyfert galaxies, BL Lac objects, and emission line galaxies; the power-law spectra observed in the X-ray range must steepen substantially between 50 keV and 50 MeV. In addition, a cosmological integration shows that Seyfert galaxies, BL Lac objects, and quasars may account for most of the 1-150 MeV diffuse background, even without significant evolution.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 232
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    Magnetic Cepheids (1979)
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    Publication Date: 2011-08-17
    Description: The role of a magnetic field in the pulsational behavior of classical Cepheids has been studied by computing linearized models of pulsating stellar envelopes pervaded by a well-tangled magnetic field. It is found that the 'pulsational' masses of Cepheids that are implied by the theoretical values of the quantities Q(0), P(1)/P(0), and (possibly) P(2)/P(0) can be brought into line with the large 'evolutionary' masses, if the pressure due to the postulated magnetic field is assumed to be comparable to the thermodynamic pressure everywhere in the pulsating layers. The field strengths that are required - several hundred gauss at the surface and several ten thousand gauss at the base - are quite reasonable from the point of view of the observed magnetic fields in Cepheids. The influence of the magnetic field on the location of the blue edge of the instability strip in the H-R diagram is estimated to be very slight.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 234
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  • 71
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    HEAO 1 observations of the X-ray pulsar 4U 1626-67 (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Results are reported for an observation of the 7-s pulsar 4U 1626-67 with the A-2 experiment on HEAO 1. The phase-averaged X-ray spectrum between 0.7 and 60 keV is complex, as are the constituent spectra, which change radically as a function of pulse phase. Included in this spectral change is the sudden appearance and subsequent decay of a continuum or emission feature with a mean energy of 19 keV, which contains about one-half the power in this spectral range. Pulse-timing results include a new determination of the pulse period and a factor of 8 reduction in the upper limit for the light travel time for orbital periods between 1 and 7 hours. These findings are discussed and compared with the general nature of pulsar spectra.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 231
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  • 72
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    Statistical equilibrium in cometary C2. II - Swan/Phillips band ratios (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Statistical equilibrium calculations have been made for both the triplet and ground state singlets for C2 in comets, using the exchange rate as a free parameter. The predictions of the results are consistent with optical observations and may be tested definitively by accurate observations of the Phillips and Swan band ratios. Comparison with the one reported observation indicates compatibility with a low exchange rate and resonance fluorescence statistical equilibrium.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 231
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  • 73
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    Pioneer 10 studies of interplanetary shocks at large heliocentric distances (1979)
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    Publication Date: 2011-08-17
    Description: Pioneer 10 Ames plasma analyzer data collected in the 6.1 to 12.6 AU range of heliocentric distances (November 1974 to April 1977) have been examined for interplanetary shock waves. Eighteen shock signatures have been identified, with four of these being of the reverse type and the remainder the forward type. Sonic Mach numbers in the range from 3 to 10 are estimated for these events.
    Keywords: ASTROPHYSICS
    Type: Geophysical Research Letters; 6; June 197
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  • 74
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    Discovery of two distorted interstellar bubbles (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: During an extensive program of direct imagery of emission nebulae, arcuate structures have been found around two stars. A well-defined shocklike structure is found about the T Orionis variable LL Ori, located to the side of the Orion Nebula. A less extensive shocklike structure is also found about the runaway star Zeta Oph. These structures can be best described in terms of distorted interstellar bubbles. A direct consequence of this interpretation is an independent estimate of the rates of mass loss for these stars.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 23
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  • 75
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    An upper limit for the total energy of relativistic particles contained in the early stages of supernova explosions (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: A model is proposed for the emission of X-rays from supernova explosions wherein the thermal distribution of photons from a supernova photosphere is inverse Compton scattered by relativistic electrons within or near the surface of the star. Using this model, upper limits for the number of relativistic electrons and their total energy are established on the basis of upper limits to the observed X-ray luminosity of a supernova during maximum light. These upper limits, in conjunction with radio frequency upper limits obtained by Brown and Marscher, strongly suggest that supernovae do not produce significant numbers of relativistic particles until at least 70 years after the initial outburst. This, in turn, implies that young supernovae cannot account for the radio and X-ray variability of active galactic nuclei and quasars.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 230
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  • 76
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    Gamma rays from accretion onto rotating black holes (1979)
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    Publication Date: 2011-08-17
    Description: Ionized matter falling onto an isolated rotating black hole will be heated sufficiently that proton-proton collisions will produce mesons, including neutral pions, which decay into gamma rays. For massive (1000-solar mass) black holes, the resulting gamma-ray luminosity may exceed 10 to the 36th erg/s with a spectrum peaked near 20 MeV.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics; 74; 1, Ap; Apr. 197
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  • 77
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    Sporadic mass ejection in red supergiants (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: A general mechanism first proposed by Burke (1969) is applied to red supergiants for determining the spin-down rate and angular-momentum loss of rotating stars. This model relies principally on sporadic mass ejection, which is assumed to be the result of turbulent elements accelerating material in cool supergiant atmospheres. Mass is preferentially expelled in the forward direction of rotation, resulting in a rapid loss of angular momentum on time scales of 10,000 to 1 million years in the supergiant evolutionary phase. Such rotational breaking will occur if the turbulent elements have characteristic sizes a few percent of the stellar radius and rms velocities one-third the escape speed of the star. This model predicts the formation of a cool silicate disk or torus around the star because of the preferred expulsion of material near equatorial regions of the supergiant.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 228
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  • 78
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    Absorption models for low-frequency variability in compact radio sources (1979)
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    Publication Date: 2011-08-17
    Description: The consequences of the most plausible version of the absorption model for low-frequency variability in compact extragalactic radio sources are considered. The general restrictions placed on such a model are determined, and observational tests are suggested that can be used either to support the model or to discriminate among its various versions. It is shown that low-frequency variability in compact radio sources can be successfully explained by a class of models in which the flux is modulated by changes in free-free optical depth within an intervening ionized medium. Two versions of such a model are distinguished, one involving large changes in optical depth and the other, small changes. It is noted that while absorption effects are capable of causing rapid flux and structural variations at centimetric wavelengths, the models predict detailed behavior that is in direct conflict with observational data.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 228
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  • 79
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    Comptonization of X-rays by low-temperature electrons (1979)
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    Publication Date: 2011-08-17
    Description: A method is described for calculating the spectrum that results from the Compton scattering of a monochromatic source of X-rays by low-temperature electrons, both for initial-value relaxation problems and for steady-state spatial diffusion problems. The method gives an exact solution of the inital-value problem for evolution of the spectrum in an infinite homogeneous medium if Klein-Nishina corrections to the Thomson cross section are neglected. This, together with approximate solutions for problems in which Klein-Nishina corrections are significant and/or spatial diffusion occurs, shows spectral structure near the original photon wavelength that may be used to infer physical conditions in cosmic X-ray sources. Explicit results, shown for examples of time relaxation in an infinite medium and spatial diffusion through a uniform sphere, are compared with results obtained by Monte Carlo calculations and by solving the appropriate Fokker-Planck equation.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 228
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  • 80
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    Photoneutrino reactions in a superstrong magnetoactive plasma (1979)
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    Publication Date: 2011-08-17
    Description: The neutrino luminosity due to the photoneutrino process in the presence of a superstrong magnetoactive electron plasma appropriate for neutron stars is computed. The results indicate that for relatively low temperatures, between 100 million and 500 million K, the energy loss rate is significantly reduced both in the low-density regime below about 10 million g/cu cm (by the magnetic field) and in the high-density regime above that value (by plasmon excitations). These effects are temperature dependent, and they are less pronounced when the temperature is in the range from 500 million to 1 billion K.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 227
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  • 81
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    Detection of HC/O-18//plus/ in Sagittarius B2 (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Line emission at 85.1 GHz attributed to the J equals 1-0 rotational transition of the formyl ion HC(O-18)(plus) has been detected in Sgr B2 (OH). The double isotopic ratio (O-16/O-18)/(C-12/C-13) in the formyl ion in Sgr B2 is estimated to be in the range 5-10, hence within a factor 2 of the terrestrial value of 5.5. This determination implies that the C-13/C-12 ratio near the galactic center does not differ greatly from that in local molecular clouds.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 227
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  • 82
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    Galactic distribution models of gamma-ray burst sources (1979)
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    Publication Date: 2011-08-17
    Description: The log N-log S relationships for several galactic distribution models of gamma-ray burst sources are derived. The resulting curves are substantially different from the galactic curves usually assumed (slope = -1). There is a relatively weak dependence on the radial distribution assumed but a strong dependence on scale height. Available observational data from several experiments appear to rule out both thin disk distributions and extended halo distributions which have a strong radial density dependence. The prospects are good for obtaining self-consistent distribution data from future large-area detectors.
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  • 83
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    Scale covariance and G-varying cosmology. II - Thermodynamics, radiation, and the 3 K background (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Within the framework of a scale-covariant theory of gravitation, a semiclassical description of particles and photons is given. Thermodynamic relations consistent with the modified conservation equations are derived. Application to a system of radiation shows that the observed 3-K background radiation can be interpreted, within the present framework, as a remnant of equilibrium radiation in the past. As the theory postulates a nonstandard coupling between gravitation and electrodynamics, the assumption that Einstein's theory of gravitation is unchanged forces modifications at the atomic level. The use of Minkowskian spacetime in atomic physics is found to be adequate only over small, but not large, time scales compared with the age of the universe. As a result, a relation between energy and the frequency of a free photon is demonstrated. Possible observational consequences of this relation are discussed.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal Supplement Series; 41; Oct. 197
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  • 84
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    Large-scale structure of X-ray clusters of galaxies (1979)
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    Publication Date: 2011-08-17
    Description: Observations from the A-2 experiment on HEAO-1 are used to search for very large-scale structure (exceeding a degree) in 40 X-ray sources in clusters of galaxies. Significant evidence for extension is found only in the relatively nearby Perseus and Virgo clusters. For the remainder of the sources the results place stringent limits on the flux in any very large component.
    Keywords: ASTROPHYSICS
    Type: Royal Astronomical Society; vol. 189
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  • 85
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    The violent interstellar medium (1979)
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    Publication Date: 2011-08-17
    Description: Observational evidence for high-velocity and high-temperature interstellar gas is reviewed. The physical processes that characterize this gas are described, including the ionization and emissivity of coronal gas, the behavior and appearance of high-velocity shocks, and interfaces between coronal gas and cooler interstellar gas. Hydrodynamical models for the action of supernova explosions and stellar winds on the interstellar medium are examined, and recent attempts to synthesize all the processes considered into a global model for the interstellar medium are discussed.
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  • 86
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    HEAO 1 observations of 4U1232+07 (1979)
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    Publication Date: 2011-08-17
    Description: An analysis of the NRL HEAO 1 observations of the Virgo cluster and 3C 273 has revealed X-ray emission from a region between these two objects. The most satisfactory explanation is the presence of two weak X-ray sources, for which error boxes have been obtained. One source is likely to be the peculiar galaxy IC 3576, suggested by Margon et al. (1972) as the source 2U 1231+07=4U 1232+07. The error box resulting from combining the present observations with the 4U data strengthen the X-ray identification with this extremely interesting galaxy. There are numerous possibilities for the other X-ray source, including the interacting pair of galaxies NGC 4410a and NGC 4410b (NGC 4410a/b).
    Keywords: ASTROPHYSICS
    Type: Nature; 281; Oct. 11
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  • 87
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    VV 5-32-63/64 - The 'supermassive double galaxy' in Abell 1775 revisited (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Spectroscopy is presented for galaxies in A 1775, the cluster containing VV 5-32-63/64, an apparent double galaxy which has long been considered a gravitationally bound system with supermassive components (10 to the 13th solar masses). However, this model has run afoul of recent radio observations, which detected an extremely long straight radio tail emanating from the eastern galaxy in the pair. The present observations indicate that if both galaxies are members of the same cluster, the cluster radial-velocity dispersion (1522 km/sec) is large enough to account for the velocity difference between the two VV galaxies (1650 km/sec). It is therefore suggested that the VV galaxies are not gravitationally bound and need not be supermassive. The large velocity dispersion measured for A 1775 also strains suggested velocity dispersion vs X-ray luminosity relations for clusters of galaxies, as A 1775 has not yet been detected at X-ray wavelengths.
    Keywords: ASTROPHYSICS
    Type: Astronomical Society of the Pacific; vol. 91
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  • 88
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    Infrared spectroscopy of stars (1979)
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    Publication Date: 2011-08-17
    Description: This paper reviews applications of IR techniques in stellar classification, studies of stellar photospheres, elemental and isotopic abundances, and the nature of remnant and ejected matter in near-circumstellar regions. Qualitative IR spectral classification of cool and hot stars is discussed, along with IR spectra of peculiar composite star systems and of obscured stars, and IR characteristics of stellar populations. The use of IR spectroscopy in theoretical modeling of stellar atmospheres is examined, IR indicators of stellar atmospheric composition are described, and contributions of IR spectroscopy to the study of stellar recycling of interstellar matter are summarized. The future of IR astronomy is also considered.
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  • 89
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    Observed properties of interstellar dust (1979)
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    Publication Date: 2011-08-17
    Description: Recent information on the observed properties of interstellar dust is reviewed, with an attempt made to clarify some of the observational uncertainties associated with obtaining dust parameters. Attention is given to interstellar extinction, the interstellar dust distribution, the dust-to-gas ratio, and light scattering by dust grains. Interstellar polarization is also examined, along with heavy-element depletion in the interstellar medium, thermal emission from interstellar dust grains, diffuse interstellar features, and the composition and origin of interstellar grains.
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  • 90
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    Stellar magnetic fields - The role of a magnetic field in the peculiar M giant, HD 4174 (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Principles of coronal heating via basic electrodynamic effects, viz., resonant absorption of Alfven surface waves (quiescent) and magnetic tearing instabilities (impulsive), are detailed to argue three principles which may have application to late-type evolved stars. First, if one observes that B-squared/8 pi is much greater than rho times v-squared in a stellar atmosphere, then the observed magnetic field must originate in an interior dynamo. Second, low mass-loss rates could imply the presence of closed magnetic flux loops within the outer atmosphere, which constrain hydrodynamic flows when the magnetic body forces exceed the driving forces. Third, given that such magnetic loops effect an enhancement of the local heating rate, a positive correlation is predicted between the existence of a corona and low mass-loss rates. Application of these principles is made in the case of the peculiar M giant star HD 4174, which is purported to have a kilogauss magnetic field. Several of its spectroscopic peculiarities are shown to be consistent with the above principles, and further observational checks are suggested. Possible application to dMe and RS CVn objects is sketched.
    Keywords: ASTROPHYSICS
    Type: Astronomical Society of the Pacific; vol. 91
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  • 91
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    Physical parameter profiles of selected X-ray flares (1979)
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    Publication Date: 2011-08-17
    Description: Soft X-ray proportional-counter data for nine X-ray flares of class C1 to M1 occurring during the Skylab mission, have been analyzed to yield temperature, volume emission measure, electron density and thermal energy content. Profiles of these quantities are presented, using 1-min averages of 2.5-s resolution data. The event profiles are discussed and comparisons with previous studies made.
    Keywords: ASTROPHYSICS
    Type: Astronomy and Astrophysics Supplement Series; 38; Oct. 197
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  • 92
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    Pulse-phase spectroscopy of Hercules X-1 (1979)
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    Publication Date: 2011-08-17
    Description: The 6-18 keV and the 40-60 keV X-ray spectrum of Hercules X-1 were simultaneously observed with the A-2 experiment on HEAO-1. By combining these measurements with the results of an earlier observation of this X-ray pulsar, evidence was found for a component of emission above 40 keV which is above an extrapolation from lower energies, by a factor which depends on the phase of the pulse. These data were compared to previous hard X-ray observations and possible models were discussed.
    Keywords: ASTROPHYSICS
    Type: Royal Astronomical Society; vol. 188
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  • 93
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    Cosmic far-ultraviolet background radiation - Probe of a dense hot intergalactic medium (1979)
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    Publication Date: 2011-08-17
    Description: Line and continuum radiation fluxes have been computed for a wide range of enriched intergalactic medium (IGM) models. Observations of the diffuse extragalactic light at optical and far-ultraviolet wavelengths are found to provide a potentially important probe of a dense hot intergalactic medium. If the diffuse X-ray background is produced by this gas, the models constrain the cosmological density parameter (Omega) to be less than 0.4. The associated Compton distortions of the cosmic blackbody background radiation and the optical depths to distant quasars at X-ray wavelengths are also evaluated.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 231
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  • 94
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    Double core evolution and X-ray binaries (1979)
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    Publication Date: 2011-08-17
    Description: The evolution of a 16-solar mass star and a 1-solar mass neutron star is followed through the common-envelope binary phase. It is found that the encounter of the neutron star with a yellow giant leads to coalescence of the two cores, while encounter with a red giant leads to hydrodynamic expansion and probable ejection of the common envelope. Within the context of the two rotation laws (1) uniform rotation (investigated in the present study), and (2) uniform specific angular momentum (considered in an earlier study), the results are independent of the choice for the angular-momentum distribution in the common envelope. Implications of the results for the binary pulsar phase are discussed.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Letters; 20; 2, 19; 1979
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  • 95
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    Reversal of the /O III/lambda 4363/H sub gamma lambda 4340 ratio in the planetary nebula IC 4997 (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: Five image-tube spectrograms of the planetary nebula IC 4997 obtained during August 1977 show that the intensity forbidden ratio O III 4363 A/H-gamma 4340 A was equal to unity, but a sixth one obtained in April 1978 showed the ratio to be 0.91. These results represent a significant increase in the intensity ratio, which had been declining from 1895 to 1962 (when it was considerably less than unity), and is interpreted as resulting from a gradual increase in temperature of the nebula's central star accompanied by a transient event which led to a temporarily high value for the ratio in mid-1977.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 231
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  • 96
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    X-ray observations of AM Herculis from OSO 8 (1979)
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    Publication Date: 2011-08-17
    Description: X-ray observations of the white dwarf binary system AM Herculis in the range 2 to 250 keV, taken by OSO 8, are presented and compared with balloon and Ariel 5 measurements. The composite spectrum of the 2 to 40 and 20 to 250 keV fluxes determined by the proportional counter and the high energy scintillation spectrometer, respectively, on board the satellite is shown averaged over the entire binary cycle. Variations in spectral shape and intensity between the OSO 8 results and balloon measurements taken 10 to 20 days apart are observed. Results indicate the presence of a spectral break at about 15 keV on some occasions, similar to that seen in Her X-1, however presumably caused by a different mechanism than in the neutron star. It is also considered unlikely that the gamma-ray tail observed by Ariel 5 existed during OSO 8 observations.
    Keywords: ASTROPHYSICS
    Type: Nature; 279; June 7
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  • 97
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    NGC 1275 /3C 84/ - Similar structure in the optical and 3-mm radio variations (1979)
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    Publication Date: 2011-08-17
    Description: Optical and 3.3-mm data for the Seyfert galaxy NGC 1275 (3C 84) are compared. Similarities exist between the variations at the two wavelengths with regard to amplitude, time scale, and interval between events. The question is raised whether these similarities may be the result of a common triggering mechanism.
    Keywords: ASTROPHYSICS
    Type: Astronomical Society of the Pacific; vol. 91
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  • 98
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    An analysis of the infrared continuum of comets. II - Comet Kohoutek (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: An analysis of the infrared observations of comet Kohoutek has been carried out on the basis of silicate grain models. The 'observed' grain temperature has been obtained as a function of the heliocentric distance, and it is compared with the expected distribution. In the visible region, one requires for the refractive index, (m = n-ik), n of about 1.6 and k less than 0.05. The total number of grains varies essentially as the inverse square of radial distance; the size of the particles in the antitail of the comet Kohoutek is greater than 5 microns. The ratio of infrared flux from grains to the incident solar flux at wavelengths of a few microns is calculated.
    Keywords: ASTROPHYSICS
    Type: Astronomical Journal; 84; May 1979
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  • 99
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    Cool stars - Effective temperatures, angular diameters, and reddening determined from 1-5 micron flux curves and model atmospheres (1979)
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    Publication Date: 2011-08-17
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 228
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  • 100
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    Some simple properties of stellar pulsation modes (1979)
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    Publication Date: 2011-08-17
    Description: Except for the lowest harmonics, small-amplitude stellar pulsation modes possess many simple properties whose evaluation does not require numerical integration of the fourth-order equations of motion. All antinodes tend to have the same total kinetic energy except for those lying near physical or geometric boundaries. However, when kinetic energy per unit volume is considered, order-of-magnitude enhancements are seen in antinodes lying near the center of the star, and factor-of-2 enhancements occur near the polar axis. The nodes are distributed very regularly along the radius. They follow an exponential law in g-regions, and their separation is proportional to the sound travel time in p-regions. A simple graphical procedure is described for surveying the oscillation frequencies of a new stellar model. A precise condition is derived giving the division of energy between radial and angular motion. Another condition gives the fractional contribution to the velocity field of its two sources, the divergence and the curl. Certain simplifying results of weak coupling among the linear modes are briefly described.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 227
    Format: text
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