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Pachyonychis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Chrysomelidae
Subfamily:	Galerucinae
Tribe:	Alticini
Genus:	Pachyonychis H. Clark, 1860
Species:	P. paradoxa
Binomial name
Pachyonychis paradoxa H. Clark, 1860
Synonyms
Pachyonychus Crotch, 1873 (Missp.) Hamletia Crotch, 1873 Hamletia dimidiaticornis Crotch, 1873

Pachyonychis is a genus of flea beetles in the family Chrysomelidae containing a single described species, P. paradoxa, from the United States.

The name is extremely similar to a different flea beetle, Pachyonychus paradoxus, named in 1847, that occurs on the same host plant; Crotch, in 1873, erroneously thought that Clark's name was spelled the same as the other species, and replaced Clark's name.

References

1. Clark, H. (1860). Catalogue of Halticidae in the collection of the British Museum, Physapodes and Oedipodes. Part I. London: The Trustees. p. 61.
2. Nadein, K. S. (2013). Catalogue of Alticini genera of the World (Coleoptera: Chrysomelidae). Zoological Institute, Saint-Petersburg. Retrieved 2019-07-02.
3. Riley, Edward G.; Clark, Shawn M.; Seeno, Terry N. (2003). Catalog of the leaf beetles of America north of Mexico (Coleoptera: Megalopodidae, Orsodacnidae and Chrysomelidae, excluding Bruchinae). Special Publication No. 1. The Coleopterists' Society. ISBN 978-0-9726087-1-8.

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