Sagola anisarthra, Broun, 1893 b:, 1053

Park, J. - S. & Carlton, C. E., 2014, A revision of the New Zealand species of the genus Sagola Sharp (Coleoptera: Staphylinidae: Pselaphinae: Faronitae), The Coleopterists Bulletin (mo 13) 68, pp. 1-156 : 78

18. anisarthra species-group

(5 species)

Diagnosis. Members of the anisarthra speciesgroup can be distinguished from other Sagola species-groups by the following combination of characters: body length 2.3–3.2 mm; antennomere 1 approximately 2 times longer than wide; ventral surface of head weakly convex, but not modified ( Fig. 45m ); anterior frontal fovea round and partially covered by frontal rostrum, posterior frontal fovea oval ( Fig. 45l ); hind wings well-developed; abdominal tergites IV–VI with discal carinae.

KEY TO SPECIES OF THE ANISARTHRA SPECIES- GROUP

The key is based on male specimens because most female specimens are indistinguishable based on external morphology.

1. Abdominal ventrite VII deeply emarginate, surrounded by dense setae........................ 2

1′. Abdominal ventrite VII normal..............3

2(1). Antennomeres 9–10 transverse; elytra triangular, as long as wide; hind wings reduced to small pads ............................ .............. S. wairarapaensis new species

2′. Antennomeres 9–10 subquadrate; elytra rectangular, longer than wide; hind wings fully developed ..... S. clarkei new species

3(1′). Antennomeres 4–6 enlarged; frontal sulcus deep ( Fig. 45l ); eye larger, one-half length of temple ( Fig. 45l ) ................................... ................................. S. anisarthra Broun

3′. Antennomeres 4–6 normal, with tubercles; frontal sulcus shallow; eye smaller, onethird length of temple.............................. 4

4(3′). Median lobe of genitalia slender, as wide as paramere ( Fig. 45g –h ) .......................... ............................... S. planipennis Broun

4′. Median lobe of genitalia at least 3 times broader than paramere ( Fig. 45i ) .............. ........................ S. townsendi new species

Figures

Fig. 45. Sagola species in the anisarthra species-group. Habitus, dorsal views: a) S. anisarthra, b) S. planipennis, c) S. townsendi, d) S. wairarapaensis, e) S. clarkei. Aedeagi, dorsal views: f) S. anisarthra, g) S. planipennis, h) S. planipennis, lateral view, i) S. townsendi, j) S. wairarapaensis, k) S. clarkei. S. anisarthra, male head: l) Dorsal surface, m) Ventral surface. Scale bars a–e = 1 mm, f–m = 0.1 mm.