The name is a combination of the Ancient Greek  ("pachys"), meaning "thick", and the related genus Onomastus. The species is named in honor of Kálmán Kittenberger, who collected the species.
The scientific name for this species is a combination of the Greek words "pachys" (meaning "thick") and the genus Onomastus. It was given in honor of Kálmán Kittenberger, who discovered the species.