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  • 1970-1974  (1)
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    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Au cours de la décennie 1961–1971,Exenterus amictorius, est devenu le principal parasite de la TenthrèdeDiprion similis (Hartig), au Wisconsin. Onze parasites secondaires se sont associés àE. amictorius durant la même période: neufs endémiques à l'Amérique du Nord et deux introduits, mais non-récents. De ces parasites, quatre n'avaient jamais été élevés à partir deD. similis auparavant, trois reconnus autrefois comme parasites primaires se sont trouvés être des hyperparasites, et quatre décrits auparavant comme hyperparasites ont étendu leur distribution àE. amictorius. Tous les hyperparasites sont des hyménoptères appartenant aux familles suivantes:Pteromalidae (5),Ichneumonidae (3),Eulophidae (1),Eupelmidae (1), etTorymidae (1).
    Notes: Abstract In a 10 year period,Exenterus amictorius (Panzer) has become the dominant primary parasite of the introduced pine sawfly,Diprion similis (Hartig), in Wisconsin. During this time (1961–71), eleven secondary parasites have associated themselves withE. amictorius. Nine are endemic to North America and two are exotic but not of recent origin. Of these, four had never been reared previously fromD. similis cocoons; three, previously recorded as primaries, were recorded as hyperparasites; and four, previously recorded as hyperparasites, had broadened their range to includeE. amictorius. All hyperparasites are hymenopterans in the familiesPteromalidae (5),Ichneumonidae (3),Eulophidae (1),Eupelmidae (1), andTorymidae (1).
    Type of Medium: Electronic Resource
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