Two new species of Abernessia Arlé (Pompilidae, Ctenocerinae) by Cecilia Waichert, James P. Pitts

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Taxonomy of Apenesia (Hymenoptera, Bethylidae) from Estação Biológica de Santa Lúcia, Espírito Santo, Brazil by Cecília Waichert, Celso Oliveira Azevedo

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Range extension of Plumarius brasiliensis Penteado-Dias and Scatolini, 2003 (Hymenoptera: Plumariidae) in Northeastern Brazil by Cecilia Waichert, Celso Azevedo, Rodrigo Ferreira, Kevin Williams

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New records of spider wasps (Hymenoptera, Pompilidae) from Colombia by Ana Castro Huertas, James Pitts, Juanita Rodriguez, Cecilia Waichert, Fernando Fernandez

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The geological record and phylogeny of spider wasps (Hymenoptera: Pompilidae): A revision of fossil species and their phylogenetic placement. by Juanita Rodriguez, Cecilia Waichert, Carol D von Dohlen, James P Pitts

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More new records of spider wasps from Colombia (Hymenoptera, Pompilidae) by Cecilia Waichert, Fernando Fernández, Valentina Castro-Huertas, Juanita Rodriguez, James P. Pitts

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Litter Surface Temperature: A Driving Factor Affecting Foraging Activity in Dinoponera lucida (Hymenoptera: Formicidae) by Flávio Curbani, Cássio Zocca, Rodrigo B. Ferreira, Cecilia Waichert, Tathiana Guerra Sobrinho, Ana Carolina Srbek-Araujo

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Couples in phoretic copulation, a tool for male-female association in highly dimorphic insects of the wasp genus Dissomphalus Ashmead (Hymenoptera: Bethylidae) by Celso O. Azevedo, Wesley D. Colombo, Isabel D.C.C. Alencar, Chirlei D. de Brito, Cecilia Waichert

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