ABSTRACT
Pronotum transverse to elongate, mostly constricted basally; margined; with lateral spines or teeth in many, or prominent anterolateral tooth; surface punctate; prosternal process narrow to broad; procoxal cavities moderately to broadly separated, open posteriorly (Brontinae), or narrowly separated and closed posteriorly; mesocoxal cavities open laterally, broadly to narrowly separated; lateral sclerites of mesothorax in Silvaninae appearing fused; metacoxae transverse. Legs with trochantin concealed; anterior coxae round; middle coxae round; hind coxae transverse; trochanters normal, spined in males of some; femora slender to moderate, spined or otherwise modified in males of some; tibiae slender to moderate; apical spurs small, subequal;
tarsi of two types: tarsomeres I and IV very short, tarsomeres II and III longer; lobed or bilobed in some Brontinae, or tarsomere I longer than II, III, or IV, IV very small, III lobed in some Silvaninae; tarsal formula 5-5-5 in both sexes; claws simple; scutellum moderate.
