. . "Pachyonychus is a genus of flea beetles in the family Chrysomelidae containing a single described species, P. paradoxus, from the United States. The name is extremely similar to a different flea beetle, Pachyonychis paradoxa, named in 1860, that occurs on the same host plant."@en . . . . . "F. E. Melsheimer, 1847"@en . "Pachyonychus"@en . . "Pachyonychus is a genus of flea beetles in the family Chrysomelidae containing a single described species, P. paradoxus, from the United States. The name is extremely similar to a different flea beetle, Pachyonychis paradoxa, named in 1860, that occurs on the same host plant."@en . "F. E. Melsheimer, 1847"@en . "1117093547"^^ . "paradoxus"@en . . . . . . . . "* Clarkaltica Weise, 1921"@en . . . "4"^^ . . . "Pachyonychus"@en . . . "57348171"^^ . . . . . "1916"^^ .