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The comparative external morphology and systematics of the Neotropical parasitic fig wasp Idarnes (Hymenoptera: Torymidae)
Vol 50, Iss 9, Page 389
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Phylogeny and classification of the Aculeate Hymenoptera with special reference to Mutillidae
Vol 50, Iss 11, Page 483
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Taxonomy of five nearctic subgenera of Coelioxys (Hymenoptera: Megachilidae)
Vol 50, Iss 12, Page 649
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Thoracic Polymorphism in Mesovelia mulsanti (Hemiptera: Mesoveliidae)
Vol 50, Iss 10, Page 457
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Parasitid Mites Associated with Bumblebees in Alberta, Canada (Acarina: Parasitidae; Hymenoptera: Apidae). I. Taxonomy
Vol 50, Iss 13, Page 731