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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Case-bearing Leaf Beetles (Cryptocephalinae) » Cryptocephalini » Pachybrachina » Scriptured Leaf Beetles (Pachybrachis) » Black Pachys (Pachybrachis Black Pachys) » Pachybrachis nigricornis

Species Pachybrachis nigricornis

Classification · Synonyms and other taxonomic changes · Numbers · Size · Identification · Range · Print References · Internet References · Works Cited

Another Cryptocephalus? - Pachybrachis nigricornis

Pachybrachis nigricornis difficilis Fall - Pachybrachis nigricornis

Pachybrachis nigricornis autolycus Fall - 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

No Taxon (Series Cucujiformia)

Superfamily Chrysomeloidea (Longhorn 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.

Contributed by Jim McClarin on 11 December, 2005 - 7:17am
Additional contributions by Mike Quinn
Last updated 24 July, 2017 - 9:53am

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