Nomenclatural-confusion
Guides
Pachyonychus
Pachyonychus is a genus of flea beetles in the family Chrysomelidae, established by F.E. Melsheimer in 1847. The genus contains a single described species, P. paradoxus, from the United States. The genus name is notably similar to Pachyonychis, a different flea beetle genus containing P. paradoxa, which was named in 1860 and occurs on the same host plant. This nomenclatural similarity has caused historical confusion between the two taxa.