Key to the species of Hoplophaeogenes Heinrich, 1938 (updated from Rousse et al. 2013)

1. Antenna short, with less than 25 flagellomeres (A); head mostly dark brown to black with mandibles, clypeus and frons pale yellow (B) ....................................................... H. curticornis Heinrich, 1938

– Antenna longer, with more than 25 flagellomeres (a); head mostly pale yellow with occiput and vertex black (b) ....................................................................................... H. amoenus Heinrich, 1938