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Notes on the biology ofOdynerus dilectus [Hym.: Eumenidae], a predator of the alfalfa weevil,Hypera postica [Col.: Curculionidae]
Authors:G E Bohart  F D Parker  V J Tepedino
Institution:(1) Bee biology & Systematics Laboratory, Agricultural Research, Science & Education Admin. USDA, Utah State University, UMC 53, 84322 Logan, Utah, USA
Abstract:We describe the nest construction and architecture, and the prey collection and storage behavior ofOdynerus dilectus Saussure, a ground-nesting eumenid wasp of North America that exclusively utilizes weevil larvae of the genusHypera as prey. This species may have potential as a biological control agent of alfalfa and clover weevils in the genusHypera because of its rapid collection of weevil larvae, its gregarious nesting habit, and the apparent ease with which individuals can be transplanted. Other European congeners have many similar characteristics. The potential for adverse interactions betweenO. dilectus andBathyplectes curculionis (Thomson), a parasite ofHypera, is discussed.
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