Pachyonychis

Pachyonychis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Cucujiformia
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;

Last updated September 13, 2025

Pachyonychis is a genus of flea beetles in the family Chrysomelidae containing a single described species, P. paradoxa, from the United States.^[2]

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.^[3]

References

↑ Clark, H. (1860). Catalogue of Halticidae in the collection of the British Museum, Physapodes and Oedipodes. Part I. London: The Trustees. p. 61.
↑ Nadein, K. S. (2013). Catalogue of Alticini genera of the World (Coleoptera: Chrysomelidae). Zoological Institute, Saint-Petersburg. Retrieved 2019-07-02.
↑ 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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[1] Clark, H. (1860). Catalogue of Halticidae in the collection of the British Museum, Physapodes and Oedipodes. Part I. London: The Trustees. p. 61.

[Nadein2013-2] Nadein, K. S. (2013). Catalogue of Alticini genera of the World (Coleoptera: Chrysomelidae). Zoological Institute, Saint-Petersburg. Retrieved 2019-07-02.

[Rileyetal2003-3] 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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