Bicyrtes Lepeletier (Hymenoptera: Sphecidae) in the Lower Rio Grande Valley of Texas and in Northeast Mexico
Abstract
Bicyrtes is represented in the Lower Rio Grande Valley and adjacent Mexico by 5 species: B. capnoptera (Handlirsch), B. fodiens (Handlirsch), B. variegata Olivier, B. ventralis (Say), and B. viduata (Handlirsch). Adults fly between March and September but vary greatly in abundance from year to year. Bicyrtes nests in sand, often along rivers. It visits flowers, especially of Baccharis, Pluchea, and Ratibida. The genus seems of Neotropic origin, but its south Texas fauna includes Neotropic, Sonoran, and Nearctic elements.Downloads
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