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). 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

Published as part of Park, J. - S. & Carlton, C. E., 2014, A revision of the New Zealand species of the genus Sagola Sharp (Coleoptera: Staphylinidae: Pselaphinae: Faronitae), pp. 1-156 in The Coleopterists Bulletin (mo 13) (mo 13) 68 on pages 19-21, DOI: 10.1649/072.068.0mo4.1, http://zenodo.org/record/4907735