Pachybrachis nigricornis

Pachybrachis nigricornis is a species of case-bearing leaf beetle in the family Chrysomelidae. It is found in Central America and North America.

Subspecies
These four subspecies belong to the species Pachybrachis nigricornis: Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net
 * Pachybrachis nigricornis autolycus Fall, 1915 i c g b
 * Pachybrachis nigricornis carbonarius Haldeman, 1849 i c g
 * Pachybrachis nigricornis difficilis Fall, 1915 i c g b
 * Pachybrachis nigricornis nigricornis (Say, 1824) i c g