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  • new species  (2)
  • Chewings fescue  (1)
  • 1
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    In:  Various articles (1313-2970) vol.651 (2017) p.107
    Publication Date: 2018-02-08
    Description: The Chinese fauna of the family Leucospidae (Hymenoptera, Chalcidoidea) is reviewed and illustrated for the first time. Twelve species of Leucospis Fabricius, 1775 are recorded; of which two species are new to science: Leucospis aequidentata sp. n. and L. shaanxiensis sp. n. and one species is reported new for China: L. intermedia Illiger, 1807. An identification key to Chinese species is included. A lectotype is designated for Leucospis aurantiaca Shestakov, 1923.
    Keywords: China ; Leucospidae ; Leucospis ; new species ; new record ; Oriental region ; Palaearctic region
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 2
    Publication Date: 2024-01-12
    Description: The Chinese fauna of the family Leucospidae (Hymenoptera, Chalcidoidea) is reviewed and illustrated for the first time. Twelve species of Leucospis Fabricius, 1775 are recorded; of which two species are new to science: Leucospis aequidentata sp. n. and L. shaanxiensis sp. n. and one species is reported new for China: L. intermedia Illiger, 1807. An identification key to Chinese species is included. A lectotype is designated for Leucospis aurantiaca Shestakov, 1923.
    Keywords: China ; Leucospidae ; Leucospis ; new species ; new record ; Oriental region ; Palaearctic region
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 3
    ISSN: 1573-1561
    Keywords: Endophyte ; Chewings fescue ; strong creeping red fescue ; ergovaline ; peramine ; lolitrem B ; chinch bug ; Epichloe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Four Chewings fescue and two strong creeping red fescue selections that had been artificially inoculated and stably maintained with four different endophytes were evaluated in feeding trials with chinch bugs (Blissus leucopterus hirtus). Significant differences in survival were found between the endophyte-inoculated plants and their endophyte-free counterparts. After seven days, 54.2% of chinch bugs were alive on endophyte-free tillers versus only 7.4% of chinch bugs fed tillers from endophyte-inoculated plants. Some differences were also found among the various plant–endophyte combinations. In Petri dish preference trials, chinch bugs showed a preference for the CA endophyte (obtained from a Chewings fescue) over the RC endophyte (obtained from a strong creeping red fescue) in Chewings fescue selection C1117. Only the inoculated plants produced erogvaline, peramine, and lolitrem B; moreover, significant differences were found among the plant–endophyte combinations in the levels of these alkaloids. The Chewings selections C1117 and C1090 produced more ergovaline, and C1090 more lolitrem B, than other plants, regardless of endophyte source. In the presence of the RC endophyte, more ergovaline and lolitrem B was produced than in the presence of the CA endophyte regardless of plant genotype. Both host plant and endophyte, therefore, contributed factors that determined alkaloid production. No significant correlations between chinch bug survival and alkaloid levels were found, however, and overall, no one plant genotype or endophyte source proved to be significantly more toxic than another to chinch bugs. Nevertheless, the results clearly demonstrated that artificial inoculations of endophyte-free fescue genotypes can produce plants with increased toxicity to chinch bugs.
    Type of Medium: Electronic Resource
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