Stenosagola eylesi 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 : 345-346

Stenosagola eylesi Park and Carlton , new species

Type Material. Holotype. NEW ZEALAND: FIORDLAND ( FD): ♂ (wingless male, aedeagus dissected and mounted in balsam on a clear plastic card), “New Zealand: FD: Turret Ra., 1200m 23 I 1970, A.C. Eyles Grass 70/87”, “ HOLO- TYPE Stenosagola eylesi Park and Carlton des. 2013” . Paratype (n = 1 male). NEW ZEALAND: FIORDLAND ( FD): 1♂ (slide-mounted), Mt. Barber , 1350m, Wilmot Pass, 15 I 1970, A.C. Eyles, Grass 70/57 ( NZAC) .

Etymology. This species is named for the collector of the holotype, A. C. Eyles.

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

Description. Length 1.75 mm ( Fig. 1o ). Head: Wingless male head approximately 1.28 times longer than wide, eye 0.68 times longer than temple. Wingless male antennomere 3 subquadrate, 4 slightly longer than wide, 5–7 subquadrate. Thorax: Pronotum approximately 1.07 times longer than wide. Wingless male elytra approximately 1.32 times longer than pronotum. Wingless male meso- and metaventrites trapezoidal, approximately 1.16 times longer than pronotum. Aedeagus: Apical lobe of male genitalia not bifid ( Fig. 4i ). Right paramere broader than left, setae present at tip and middle ( Fig. 4i ).

Distribution. Fiordland (FD), New Zealand ( Fig. 5 , black star).

Habitat. Specimens of this species were collected by sifting grass 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.