C. hefferni Holzschuh, 2007 is narrower, usually a little smaller and has different pronotal sculpturing. C. wallacei Pascoe, 1866 is wider (across elytra), and usually a little larger. In Sabah, C. hefferni is more common. Your photo looks like a specimen of C. hefferni but a closeup of the pronotum would make it easier to decide.
hefferni for me, on wallacei's third antennal joint the processus (lateral spine) is roughly 2 times as long as the basal segment (only 1 time 1/2 on the hefferni one).
Borneo: Cyriopalus hefferni ♂
Posted - 15/03/2017 : 06:57:20
