Stenosagola domettensis 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

Stenosagola domettensis Park and Carlton , new species

Type Material. Holotype. NEW ZEALAND: NELSON ( NN): ♂ (wingless male), “New Zealand: NN: NW Nelson, Mt. Domett , 1250m, 25 XI 1971 J. McBurney, mats 71/155”, “ HOLOTYPE Stenosagola domettensis Park and Carlton des. 2013” . Paratypes (n = 13: 10 males, 3 females). NEW ZEALAND: NELSON ( NN) : 1♂ 2♀♀ (1♀, slide-mounted), same data as holotype ( NZAC) ; 6♂♂, Mt. Domett, Summit , XII 1971, G.W. Ramsay, Moss 71/185 ( NZAC) ; 2♂♂ 1♀, Mt. Domett , 1494m, 30 XI 1971, J.S. Dugdale, Litter 71/159 ( NZAC) ; 1♂ (slide-mounted), Mt. Domett , 1463m, 1 XII 1971, J.S. Dugdale, Mats 71/181 ( NZAC) .

Etymology. This species is named after the type locality, Mt. Domett, Nelson (NN), New Zealand.

Diagnosis. Specimens of S. domettensis are similar in appearance to those of S. gracilis , S. pseudogracilis , S. clarkei , S. ramsayi , and

S. eylesi but can be distinguished by the shape of the male genitalia ( Fig. 4h ). Members of this species can be separated from those of S. egmontensis and S. stewartensis by the glossy dorsal surface of the head ( Fig. 1m –n ).

Description. Length 1.5–1.7 mm ( Fig. 1m –n ). Head: Wingless male head approximately 1.32 times, female 1.24 times longer than wide. Wingless male eye approximately 0.55 times, female 0.35 times as long as temple. Wingless male antennomere 3–5 subquadrate, 6–7 slightly transverse. Female antennomere 3 transverse, 4–5 subquadrate, 6–7 transverse. Thorax: Pronotum approximately 1.1 times longer than wide. Wingless male elytra approximately 1.3 times, female 1.1 longer than pronotum. Wingless male meso- and metaventrites trapezoidal, approximately 1.14 times, female 1.06 times longer than pronotum. Aedeagus: Apical lobe of male genitalia with two branches; main lobe hookshaped apically, minor lobe divided from ventral base of main lobe, longer and narrower ( Fig. 4h ). Parameres symmetrical, setae present at tip and middle ( Fig. 4h ).

Distribution. Nelson (NN), New Zealand ( Fig. 5 , white circle).

Habitat. Specimens of this species were collected by sifting leaf or moss 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.