Stenosagola gracilis (Broun, 1893)

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 : 338

SPECIES TREATMENTS gracilis group

Diagnosis. Body length 1.4–1.8 mm ( Fig. 1 ); head with frontal sulcus open anteriorly and broad ( Figs. 2d–f , 4e ); prosternum longer than wide ( Fig. 2i ) except as long as wide in S. egmontensis ( Fig. 4f ) and S. stewartensis ; mesoventrites without promesocoxal foveae ( Fig. 2m ); abdominal tergite and ventrite VI slightly larger than V and VII ( Fig. 2p–q ); male genitalia with deeply bifid median lobe ( Figs 2s , 4a–d, h, j ) except S. eylesi ( Fig. 4i ).

Figures

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. 2. Stenosagola gracilis. a) Winged male antenna, dorsal view, b) Wingless male antenna, dorsal view, c) Female antenna, dorsal view, d) Winged male head, dorsal view, e) Wingless male head, dorsal view, f) Female head, dorsal view, g) Labrum, dorsal view, h) Mentum, ventral view, i) Prothorax, ventral view, j) Scutellum, dorsal view, k) Winged male elytra, dorsal view, l) Wingless male elytra, dorsal view, m) Meso- and metaventrites, ventral view, n) Abdominal tergite VIII, dorsal view, o) Abdominal ventrite VIII, ventral view, p) Winged male abdomen, dorsal view, q) Wingless male abdomen, dorsal view, r) Winged male hind coxa, ventral view, s) Aedeagus, dorsal view. Scale bars = 0.1 mm.

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.