FIGURES 1–4 in Revision of the Neotropical genus Protoconnus Franz (Coleoptera: Staphylinidae: Scydmaeninae)

FIGURES 1–4. Morphological structures of Protoconnus spp. (undetermined sp. 1 (1–2, 4) and sp. 2 (3), both from Ecuador). Head in dorsal view (1), mandibles, clypeus and labrum in dorsal view (2–3); maxilla in dorsal view (4). Abbreviations: cl, clypeus; fr, frons; gal, galea; lac, lacinia; lb, labrum; md, mandible; mt, mesal tooth; mxp1–4, maxillary palpomere I–IV; nr, 'neck' region; occ, occiput; pt, prostheca; vt, vertex.