1 literature reference for Onitis violaceus Sahlberg, 1913:

Author: Sahlberg J.
Year: 1913
Title: Coleoptera mediterranea orientalia, quae Aegypto, Palaestina, Syria, Caramania atque in Anatolia occidentali anno 1904 (Scarabaeidae)
Source: Ofversight of Finska Vetenkaps-Societatens Forhandlingar. Helsingfors 55:113-128