Philanthus gibbosus is a small digger wasp which, like its congeners, provisions its brood cells with other Hymenoptera (Evans and Lin, 1959). It has the widest distribution of any North American Philanthus. This paper reports the contents of fifteen cells of this species found in nest aggregations of Lasioglossum (Dialictus) zephyrum (Hymenoptera:Halictidae) in the vertical banks of Tauy Creek, Douglas County, Kansas on July 23, 1972. The nests and cells were similar to those described by Evans and Lin; cells were fourteen to twenty-two centimeters from the burrow entrances.
Barrows, Edward M. and Snyder, Thomas P., "Halictine Bee Prey of Philanthus Gibbosus (Hymenoptera: Sphecidae) in Kansas" (1973). Ba. Paper 62.
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