FIGURES 21–24 in Revision of Neotropical species of ant-like stone beetles misplaced in Stenichnus and Scydmoraphes (Coleoptera, Staphylinidae, Scydmaeninae)

FIGURES 21–24. Morphological structures of Perumicrus peruanus (Franz), paratype male. Head in dorsal (21) and ventral (22) views; prothorax in ventral view (23); pterothorax in ventral view (24). Abbreviations: ar, anterior ridge of mesoventrite; bst, basisternal part of prosternum; bst, basistipes; cd, cardo; fr, frons; gal, galea; gp, gular plate; gs, gular suture; h, hypomeron; hy, hypostomal ridge; hyr, hypomeral ridge; lac, lacinia; lb, labrum; lp, labial palp; lmfa, lateral metafurcal arm; mcp, mesocoxal projection; md, mandible; mn, mentum; mscc, mesocoxal cavity; mscs, mesocoxal socket; msff, mesofurcal fovea; mst, mediostipes; msvp, mesoventral intercoxal process; mtvp, metaventral intercoxal process; mxp, maxillary palp; nr, 'neck' region; occ, occipital constriction; pf, profurca; pre, prepectus; pcc, procoxal cavity; pcs, procoxal socket; ptp, posterior tentorial pits; smn, submentum; v3, metaventrite; vlf, ventrolateral fovea; vt, vertex.