''Ancistrocerus campestris'' is a species of
potter wasp
Potter wasps (or mason wasps), the Eumeninae, are a cosmopolitan wasp group presently treated as a subfamily of Vespidae, but sometimes recognized in the past as a separate family, Eumenidae.
Recognition
Most eumenine species are black or brown, ...
. Adults grow up to in length.
[ Quickly identified by the coloration on the rear of its thorax which is reminiscent of a smiley face. Preys on the caterpillars of Amphisbatidae and Gelechiidae.
]
References
Hymenoptera of North America
Potter wasps
Insects described in 1853
Taxa named by Henri Louis Frédéric de Saussure
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