科 (Family):隐颚扁甲科 Passandridae
属 (Genus):隐颚扁甲属 Passandra
Specimen Image (SI)
Diagnostic combination. Body shape variable from narrow and almost cylindrical to broadly-oval and flattened; colour black rarely dark-brown; surfaces shiny. Head with sublateral and occipital grooves well developed and joined; antenna thick with antennomeres subquadrate or transverse, ventrally with very narrow, linear impression. Pronotum with sublateral lines entire, not joined anteriorly; marginal groove with notch or narrow emargination medially. Elytra with only two lines complete (I, VI), sometimes lines V and VII barely traceable near bases. Length 5-22 mm.