Aphelocerus acuticolis, OPITZ, 2005

OPITZ, WESTON, 2005, Classification, Natural History, And Evolution Of The Genus Aphelocerus Kirsch (Coleoptera: Cleridae: Clerinae), Bulletin of the American Museum of Natural History 2005 (293), pp. 1-128 : 21

bispineus group

This species group is comprised of four species whose male members show a very unique development of the posterior margins of the parameres. The parameres are predominantly truncate except at their most mesal margin where they narrowly flare out to form a small papillose protrusion (fig. 193). As in the members of the ciliaris species group in some of the specimens of the bispineus group, particularly those of A. acuticolis , n.sp., and A. bispineus , n.sp., the middiscal setal aggregate (fig. 235) suggests an evolutionary transition towards a distinct, elytral middiscal setal tuft as seen in the frontispiece. The members of this species group are known only from southern Mexico.