Couplet 127

127a:  Tarsi not lobed beneath; fore coxal cavity strongly transverse; labrum subtruncate to convex, rounded or acute; eye not emarginate; antenna rarely with distinct apical club, and if so, club of 5 or more antennomeres; elytra usually confusedly punctate; pronotum and abdomen sometimes with eversible glands

Melyridae   p. 429

127b:  Tarsi with lobes on multiple tarsomeres; fore coxal cavity circular, elongate or slightly transverse; labrum subtruncate to concave or deeply emarginate; eye often emarginate; antenna usually apically clubbed, club of one or more antennomeres; elytra often punctate-
striate; pronotum and abdomen never with eversible glands