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A new genus and five new species of Neotropical Tryphoninae (Hymenoptera: Ichneumonidae)
Vol 12, Page 209
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Foraging Strategy and Pollen Preferences of Andrena vaga (Panzer) and Colletes cunicularius (L.) (Hymenoptera: Apidae)
Vol 12, Page 220
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Taxonomic Revision of the Genus Sesioctonus Viereck (Hymenoptera: Braconidae: Agathidinae)
Vol 12, Page 238
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The Effect of Body Size on Male-Male Combat in the Parasitoid Wasp Melittobia digitata Dahms (Hymenoptera: Eulophidae)
Vol 12, Page 272
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Morphological Variation in Opius Wesmael (Hymenoptera: Braconidae) with an Emphasis on Nearctic Species in the Subgenus Gastrosema Fischer
Vol 12, Page 278
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Prosopigastra morogoro, a New Species from Tanzania (Hymenoptera: Apoidea: Crabronidae: Larrini)
Vol 12, Page 303
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A New Species of Copidosoma Ratzeburg (Hymenoptera: Encyrtidae) from Eagle Nests in Kazakhstan
Vol 12, Page 308
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Food Plants and Life Histories of Sawflies of the Families Tenthredinidae and Pergidae (Hymenoptera) in Costa Rica, with Descriptions of Four New Species
Vol 12, Page 312
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Review of the Southeastern Asian Sawfly Genus Eusunoxa Enslin (Hymenoptera: Tenthredinidae)
Vol 12, Page 333
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Larval Anatomy of Orussidae (Hymenoptera)
Vol 12, Page 346
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First Report Of Male Sleeping Aggregations In The Pollen Wasp Celonites abbreviatus (Villers, 1789) (Hymenoptera: Vespidae: Masarinae)
Vol 12, Page 355