Sagola rustica, Broun, 1915

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 : 55

11. rustica species-group

(4 species)

Diagnosis. Members of rustica species-group can be distinguished from other Sagola speciesgroups by the following combination of characters: body length 2.3–2.9 mm; antennomere 1 approximately 1.5–2.0 times longer than wide ( Fig. 31i ); ventral surface of male head convex with setose gular region; anterior frontal fovea oval ( Fig. 31j ), posterior frontal fovea elongate ( Fig. 31j ); hind wings well-developed; abdominal tergites IV–VI with discal carina; parameres long, triangular, and broader than the median lobe ( Fig. 31e–h ).

KEY TO SPECIES OF THE RUSTICA SPECIES- GROUP

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

1. Antennomeres 4–7 elongate; eye as long as temple ( Fig. 31b ).... S. duplicata Broun

1′. Antennomeres 4–7 slightly longer than wide or subquadrate; eye one-half length of temple..................................................2

2(1′). Apical major lobe of genitalia bluntly triangular ( Fig. 31g ) ..................................... ........... S. marlboroughensis new species

2′. Apical major lobe of genitalia round.....3

3(2′). Larger genitalia, ca. 0.35 mm; minor lobe of genitalia longer than major lobe ( Fig. 31e ) ........................................... S. rustica Broun

3′. Smaller genitalia, ca. 0.25 mm; minor lobe of genitalia as long as major lobe ( Fig. 31h ) ............................ S. walkerae new species

Figures

Fig. 31. Sagola species in the rustica species-group. Habitus, dorsal views: a) S. rustica, b) S. duplicata, c) S. marlboroughensis, d) S. walkerae. Aedeagi, dorsal views: e) S. rustica, f) S. duplicata, g) S. marlboroughensis, h) S. walkerae. S. walkerae, male: i) Antenna, j) Dorsal surface of head. Scale bars a–d = 1 mm, e–j = 0.1 mm.