Stenosagola clarkei Park and Carlton

Park, J. - S. & Carlton, C. E., 2013, A Revision of the New Zealand GenusStenosagolaBroun, 1921 (Coleoptera: Staphylinidae: Pselaphinae: Faronitae), The Coleopterists Bulletin 67 (3), pp. 335-359 : 343-344

Stenosagola clarkei Park and Carlton , new species

Type Material. Holotype. NEW ZEALAND: NELSON ( NN): ♂ (wingless male), aedeagus dissected and mounted in balsam on a clear plastic card, “ NEW ZEALAND: NN: Kahurangi N.P., Mt. Arthur Track , ca. 1400m, 28 XI 2005, above treeline; FMHD#2005-050 , berl., alpine tussock litter, D. Clarke; ANMT site 1158”, “ HOLO- TYPE Stenosagola clarkei Park and Carlton des. 2013” . Paratype (n = 1 male). Same data as holotype ( FMNH) .

Etymology. This species is named for the collector of the holotype, D. Clarke.

Diagnosis. Specimens of S. clarkei are similar in appearance to those of S. gracilis , S. pseudogracilis , S. ramsayi , S. domettensis , and S. eylesi but can be distinguished by the shape of the male genitalia ( Fig. 4b ). Members of this species can be separated from those of S. egmontensis and S. stewartensis by the smooth and glossy dorsal surface of the head ( Fig. 1g ).

Description. Length 1.4 mm ( Fig. 1g ). Head: Wingless male head approximately 1.26 times longer than wide. Wingless male eye approximately 0.64 times as long as temple. Wingless male antennomere 3 transverse, 4–5 subquadrate. Thorax: Pronotum approximately 1.10 times longer than wide. Wingless male elytra approximately 1.26 times longer than pronotum. Wingless male meso- and metaventrites trapezoidal, approximately 1.13 times longer than pronotum. Aedeagus: Left apical lobe of male genitalia slender and longer than right apical lobe ( Fig. 4b ). Right paramere broader than left, setae present anteriorly ( Fig. 4b ).

Distribution. Nelson (NN), New Zealand ( Fig. 5 , black triangle).

Habitat. Specimens of this species were collected in alpine tussock litter.

Figures

Fig. 4. Stenosagola species. a) S. pseudogracilis, aedeagus, dorsal view, b) S. clarkei, aedeagus, dorsal view, c) S. egmontensis, aedeagus, dorsal view, d) S. ramsayi, e) S. egmontensis, winged male head, dorsal view; f) S. egmontensis, prothorax, ventral view; g) S. egmontensis, prothoracic leg, h) S. domettensis, aedeagus, dorsal view, i) S. eylesi, aedeagus, dorsal view, j) S. stewartensis, aedeagus, dorsal view. Scale bars = 0.1 mm.

Fig. 1. Habitus of Stenosagola species, dorsal view. a) Winged male of S. gracilis, b) Wingless male of S. gracilis, c) Female of S. gracilis, d) Winged male of S. pseudogracilis, e) Wingless male of S. pseudogracilis, f) Female of S. pseudogracilis, g) Wingless male of S. clarkei, h) Wingless male of S. egmontensis, i) Female of S. egmontensis, j) Winged male of S. ramsayi, k) Wingless male of S. ramsayi, l) Female of S. ramsayi, m) Wingless male of S. domettensis, n) Female of S. domettensis, o) Wingless male of S. eylesi, p) Wingless male of S. stewartensis. Scale bars = 1 mm.

Fig. 5. Locations where Stenosagola clarkei (black triangle), Stenosagola egmontensis (Black circle), Stenosagola ramsayi (black squares), Stenosagola domettensis (white circle), Stenosagola eylesi (star), and Stenosagola stewartensis (white square) have been collected in New Zealand.