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AN ETHOLOGICAL STUDY OF THE DIGGER WASP BEMBECINUS NEGLECTUS, WITH A REVIEW OF THE ETHOLOGY OF THE GENUS By HOWARD E. EVANS (Cornell Univ., Ithaca, N. Y.1) (with 2 Plates) (Rec. 15-V-1954) The digger wasp genus Bembecinus (Hymenoptera, Sphecidae) occurs throughout the warmer regions of the globe, most of the species occurring rather locally in restricted sandy areas, where they nest in the soil. In general appearance and in gross behavior these wasps suggest the somewhat larger and more familiar wasps of the not unrelated genus Epibembex (Bembex of many authors). Little detailed information is available on the behavior of the species of Bembecinus, and very little indeed on the North American species. In the summer of 1953, I had an opportunity to study a small colony of Bembecinus neglectus (Cresson) in Pottawatomie County, Kansas. The be- havior of this wasp proved to be -so unusual in certain respects that I was prompted to study the published observations on other species of Bembecinus. In general, these agree well with neglectus, confirming the ethological uni- queness of this genus, and suggesting certain evolutionary possibilities which are presented in the concluding section of this paper. DESCRIPTION OF COLONY This colony
Behaviour – Brill
Published: Jan 1, 1955
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