Sagola auripila, Broun, 1911

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 : 64-65

15. auripila species-group

(8 species)

Diagnosis. Members of the auripila speciesgroup can be distinguished from other Sagola species-groups by the following combination of characters: body small, length 1.8–2.4 mm; antennomere 1 approximately 1.5–2.0 times longer than wide; frontal sulcus deep and long extending between posterior edge of eye and end of head ( Fig. 38j–k ); hind wings reduced to small pads; abdominal tergites IV–VI with discal carinae.

KEY TO SPECIES OF THE AURIPILA SPECIES- GROUP

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

1. Antennomere 1 approximately 2 times longer than wide, with dull surface; frontal sulcus reaching posterior margin of head...............................................................2

1′. Antennomere 1 approximately 1.5 times longer than wide; frontal sulcus not extending posterior to vertexal fovea..................3

2(1). Left paramere longer than wide and bent ( Fig. 38g )............ S. gimmeli new species

2′. Right paramere longer than wide with round depression at base ( Fig. 38i ) .......... ........................... S. sokolovi new species

3(1′). Frontal sulcus distinctly wide ( Fig. 38j : arrow) ................... S. spiniventris Broun

3′. Frontal sulcus narrow ( Fig. 38k : arrow) ............................................................ 4

4(3′). Antennomeres 5–10 weakly enlarged; hind femur with triangular process; only known from North Island........................5

4′. Antennomeres 5–10 simple; hind femur simple; known from Chatham Islands or Three Kings Islands .................................. 6

5(4). Lateral median lobe of genitalia rectangular with emarginate apical lobe; parameres C-shaped ( Fig. 38a )..... S. auripila Broun

5′. Lateral median lobe of genitalia long curved with wave-shaped ventral margin; parameres weakly curved ( Fig. 38e )......... ......................... S. chandleri new species

6(4′). Parameres asymmetrical and setae only apically ( Fig. 38f ); only known from Three Kings Islands ( Fig. 40 : black square) ........ .................. S. threekingsensis new species

6′. Parameres symmetrical and setae on middle; only known from Chatham Islands ........... 7

7(6′). Median lobe of genitalia S-shaped ( Fig. 38c ) ...................... S. chathamensis new species

7′. Median lobe of genitalia rectangular ( Fig. 38d ) ....... S. pittensis new species

Figures

Fig. 38. Sagola species in the auripila species-group. Aedeagi, dorsal views: a) S. auripila, b) S. spiniventris, c) S. chathamensis, d) S. pittensis, e) S. chandleri, f) S. threekingsensis, g) S. gimmeli, h) S. sokolovi, lateral view, i) S. sokolovi. Dorsal surface of male head: j) S. spiniventris (arrow indicates wide frontal sulcus), k) S. chathamensis (arrow indicates narrow frontal sulcus). Scale bars = 0.1 mm.

Fig. 40. Known collection localities of New Zealand Sagola species. S. pittensis: black circle; S. chandleri: triangles; S. threekingsensis: black square; S. gimmeli: star; S. sokolovi: white circles.