Pachyonychis
H. Clark, 1860
Species Guides
1A of flea beetles ( Chrysomelidae) established by H. Clark in 1860, containing a single described , Pachyonychis paradoxa. The genus name has been subject to taxonomic confusion due to its similarity to the related genus Pachyonychus.
Pronunciation
How to pronounce Pachyonychis: //pæˌkaɪˈɒnɪkɪs//
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Identification
Distinguished from the superficially similar Pachyonychus by the ending of the genus name (-chis versus -chus). The single P. paradoxa was named independently of Pachyonychus paradoxus (1847), despite occurring on the same plant.
Distribution
United States.
Similar Taxa
- PachyonychusExtremely similar name; Pachyonychus paradoxus (1847) shares the same specific epithet and occurs on the same plant, causing historical confusion with Pachyonychis paradoxa (1860).
- Pachyonychus paradoxusNamed 13 years earlier than Pachyonychis paradoxa, with nearly identical spelling; Crotch (1873) erroneously treated Clark's name as a duplicate and replaced it.
Misconceptions
Crotch (1873) incorrectly concluded that Clark's Pachyonychis paradoxa was a misspelling or duplicate of Pachyonychus paradoxus, leading to an unnecessary name replacement. The two names are valid and distinct.