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Species Ancistrocerus campestris

Parancistrocerus perennis? - Ancistrocerus campestris - male Unknown Wasp on Chives - Ancistrocerus campestris - female Here's another kind, but what? - Ancistrocerus campestris Ancistrocerus campestris Wasp burrowing into masonry - Ancistrocerus campestris Ancistrocerus campestris? - Ancistrocerus campestris Wasp - Ancistrocerus campestris potter or mason wasp - Ancistrocerus campestris
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
Superfamily Vespoidea
Family Vespidae
Subfamily Eumeninae (Potter and Mason Wasps)
Genus Ancistrocerus
Species campestris (Ancistrocerus campestris)
Explanation of Names
Ancistrocerus campestris (de Saussure 1852)
Size
Forewing: ♂ 6.5–9 mm, ♀ 9–11 mm(1)
Identification
per Dr. Matthias Buck, the "smiling face" on scutellum and metanotum combined with the shape of the apical band on tergite 1 makes A. campestris fairly distinctive. Ancistrocerus lutonidus is similar but the spots on the scutellum are much larger, nearly confluent, and tergum 2 has a pair of yellow spots.
Range
a common eastern species (NH-FL to ON-MN-SD-TX)(1)
See Also
A. unifasciatus may look alike but lacks the 'curl' at the sides of the median black spot on urotergite I. -- Richard Vernier
Internet References
Works Cited
1.Identification Atlas of the Vespidae (Hymenoptera, Aculeata) of the Northeastern Nearctic Region
Matthias Buck, Stephen A. Marshall, and David K. B. Cheung. 2008. Biological Survey of Canada [Canadian Journal of Arthropod Identification].