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TaxonomyBrowse
Info
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Species Pachybrachis nigricornis

Another Cryptocephalus? - Pachybrachis nigricornis casebearer.. - Pachybrachis nigricornis Pachybrachis nigricornis difficilis Fall - Pachybrachis nigricornis Pachybrachis nigricornis autolycus Fall - Pachybrachis nigricornis Pachybrachis nigricornis Pachybrachis nigricornis (Say) - Pachybrachis nigricornis Pachybrachis nigricornis (Say) - Pachybrachis nigricornis Pachybrachis nigricornis (Say) - Pachybrachis nigricornis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Cryptocephalini
Subtribe Pachybrachina
Genus Pachybrachis (Scriptured Leaf Beetles)
No Taxon (Black Pachys)
Species nigricornis (Pachybrachis nigricornis)
Synonyms and other taxonomic changes
Pachybrachis nigricornis (Say)
Orig. Comb: Cryptocephalus nigricornis Say, 1824
Numbers
4 named subspp. (1),(2)
Pachybrachis nigricornis autolycus Fall
Pachybrachis nigricornis carbonarius Haledman
Pachybrachis nigricornis difficilis Fall
Pachybrachis nigricornis nigricornis (Say)
Size
Length 3.0-3.4 mm
Identification
P. nigricornis autolycus Fall - striped, other forms mostly or entirely black
Range
Widely dist. throughout N. Amer. (except apparently CA & NV) (1),(2)
Print References
Balsbaugh Jr, E.U. and W.L. Tucker. 1976. Geographical variation in Pachybrachis nigricornis (Coleoptera: Chrysomelidae). The Coleopterists Bulletin 30(2): 117–131. (JSTOR)
Internet References
Type spmns in the MCZ:
autolycus - MCZ, Harvard
carbonarius - MCZ, Harvard
difficilis - MCZ, Harvard
nigricornis (Fall's Type) - MCZ, Harvard
Works Cited
1.Geographical variation in Pachybrachis nigricornis (Coleoptera: Chrysomelidae).
Balsbaugh Jr, E.U. and W.L. Tucker. 1976. The Coleopterists Bulletin 30(2): 117–131.
2.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.