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For Insects, Spiders & Their Kin
For the United States & Canada
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Species Ancistrocerus campestris

wasp sp - Ancistrocerus campestris a Hymenopteran - Ancistrocerus campestris wasp or yellowjacket - Ancistrocerus campestris - female smiley face eumenine - Ancistrocerus campestris - female Ancistrocerus campestris on Eastern Baccharis (Baccharis halimifolia) - Ancistrocerus campestris Small black wasp; horizontal stripes on abdomen - Ancistrocerus campestris Eumenine - Ancistrocerus campestris - female Wasp - Ancistrocerus campestris - female
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 (Hornets, Yellowjackets; Paper, Potter, Mason, and Pollen Wasps; and Allies)
Subfamily Eumeninae (Potter and Mason Wasps)
Genus Ancistrocerus
Species campestris (Ancistrocerus campestris)
Explanation of Names
Ancistrocerus campestris (de Saussure 1852)
Forewing: ♂ 6.5–9 mm, ♀ 9–11 mm(1)
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.
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].