A revision of the New Zealand species of the genus Sagola Sharp (Coleoptera: Staphylinidae: Pselaphinae: Faronitae) Author Park, J. - S. Louisiana State Arthropod Museum, Department of Entomology, LSB 404 Louisiana State University Agric Author Carlton, C. E. Louisiana State Arthropod Museum, Department of Entomology, LSB 404 Louisiana State University Agric text The Coleopterists Bulletin 2014 mo 13 2014-12-01 68 1 156 journal article 3079 10.1649/072.068.0mo4.1 62322993-ca80-4b6c-ac95-861cbb236abd 1938-4394 4907735 2. rugifrons species-group (4 species) Diagnosis. The members of the rugifrons species-group can be distinguished from other Sagola species-groups by the following combination of characters: body length 2.1–3.4 mm ; antennomere 1 at least 2 times longer than wide with dull surface; gular region of male head with bean-shaped opening and transversely open inside ( Fig. 8j : arrow); ventral surface of male head with pair of short carinae from posterior margin of eyes, as long as eye ( Fig. 8j ); male fore femur with semicircular depression; male mid-femur with shallow depression; male mid-tibia bent; abdominal tergites IV–VI with discal carinae; present on North Island, not known from South Island ( Figs. 9–10 ). Fig. 8. Sagola species in the rugifrons species-group. Habitus, dorsal views: a) Sagola rugifrons , b) S. waipouaensis , c) S. brouni , d) S. plentyensis . Aedeagi, dorsal views: e) S. rugifrons , f) S. waipouaensis , g) S. brouni , h) S. plentyensis . S. waipouaensis , male head: i) Dorsal surface, j) Ventral surface (arrow indicates bean-shaped opening). Scale bars a–d = 1 mm, e–j = 0.1 mm. KEY TO SPECIES OF THE RUGIFRONS SPECIES- GROUP The key is based on male specimens because most female specimens are indistinguishable based on external morphology. 1. Body large, length 3.0– 3.4 mm ; head weakly transverse; frontal rostrum with distinctive punctures; densely setose around posterior frontal fovea.................................. ................................ S. brouni new species 1′. Body smaller, length 2.1–2.6 mm ; head as long as wide; not densely setose around posterior frontal fovea; frontal rostrum without punctures .................................... 2 2(1′). Antennomeres 4–8 longer than wide; major process of median lobe of genitalia slender .................................................................... 3 2′. Antennomeres 4–8 subquadrate; major process of median lobe of genitalia broad and rectangular ( Fig. 8h ) .................................... ......................... S . plentyensis new species 3(2). Apical major process of median lobe of genitalia arrowhead-shaped ( Fig. 8b )........ ................... S . waipouaensis new species 3′. Apical major process of median lobe of genitalia triangular ( Fig. 8a )...................... ................................... S. rugifrons Broun