Sagola flavipes, Broun, 1893 b:, 1422

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 : 50

9. flavipes species-group

(2 species)

Diagnosis. The members of the flavipes species-group can be distinguished from other Sagola species-groups by the following combination of characters: body length 2.4–2.8 mm; head transverse, widest across eyes ( Fig. 27e ); antennomere 1 approximately 2 times longer than wide with sparse punctures; anterior frontal fovea small round, but not externally observable because it is covered by the connected frontal rostrum ( Fig. 27e ); posterior frontal fovea elongate ( Fig. 27e ); frontal sulcus reaching length of vertexal fovea ( Fig. 27e ); ventral surface of male head with setose horn medially ( Fig. 27f : arrow); hind wings reduced to small pads; fore femur with semicircular depression; mid-tibia bent; Male tergite IV without microtrichial patch; abdominal tergites IV–VI with discal carinae; abdominal ventrites IV–VI with basolateral foveae; present on North Island, not known from South Island ( Fig. 28 ).

KEY TO SPECIES OF THE FLAVIPES SPECIES- GROUP

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

1. Horn of ventral surface of head shorter than wide; median lobe of genitalia branched into 3 lobes, major lobe triangular ( Fig. 27c ); parameres asymmetrical and as long as median lobe ( Fig. 27c ).................... S. flavipes Broun

1′. Horn of ventral surface of head as long as wide; median lobe of genitalia branched into 2 lobes, major lobe rectangular ( Fig. 27d ); parameres symmetrical and reaching midpoint of median lobe ( Fig. 27d ) .................... .......................................... S. sulcator Broun

Figures

Fig. 27. Sagola species in the flavipes species-group. Habitus, dorsal views: a) S. flavipes, b) S. sulcator. Aedeagi, dorsal views: c) S. flavipes, d) S. sulcator. S. flavipes, male head: e) Dorsal surface (arrow indicates anterior frontal fovea), f) Ventral surface (arrow indicates setose horn). Scale bars a–b = 1 mm, c–f = 0.1 mm.

Fig. 28. Known collection localities of New Zealand Sagola species. S. flavipes: black circle; S. sulcator: triangles.