It is known that various species of crabronid wasps provision their nests with adult flies. Accurate reports of these associations are not numerous, however, and there are apparently no published records of specifically identified American crabronid wasps associated with the dipterous family Acroceridae. For this reason preliminary observations are presented which indicate that there may be a frequent predator-prey relationship between certain. species of the crabronid genus Ectemnius Dahl-born and the acrocerid genus Ogcodes Latreille. Future observations and research should uncover additional facts needed to understand fully these relationships.
Bechtel, Robert C. and Schlinger, Evert I., "Biological Observations on Ectemnius with Particular Reference to their Ogcodes prey (Hymenoptera: sphecidae. Dipera: Acroceridae)" (1957). Ba. Paper 25.
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