1 literature reference for Hesperophanes (trichoferus) griseus Villiers, 1978:

Author: VILLIERS André
Year: 1978
Title: Faune des Coléoptères de France I. Cerambycidae
Source: Paul Lechevalier, Paris. Encyclopédie Entomologique 42: i-xxviii + 611 pp, 1802 figs.