Agnosthaetus nunni, Clarke, 2011

Clarke, Dave J., 2011, A Revision of the New Zealand Endemic Rove Beetle Genus Agnosthaetus Bernhauer (Coleoptera: Staphylinidae), The Coleopterists Bulletin (mo 10) 2011, pp. 1-118 : 66

Agnosthaetus nunni species-group

This species group includes Agnosthaetus nunni Clarke , Agnosthaetus carnelius Clarke , Agnosthaetus enigmus Clarke , and Agnosthaetus affinis Clarke , which share similar aedeagi ( Figs. 180–187 ), and which: 1) have distinct microsculpture on at least the head (at least anterior to the dorsal tentorial sulci); 2) lack any minor carinae in the area between the sublongitudinal ridge and the antenno-ocular carina of the head ( Fig. 10 , ao, sr); and 3) have only a single elytral ridge ( Fig. 24 , ek). Males of all four species can be distinguished by the labral teeth characters ( Figs. 177–179 ), the first three of which uniquely have a medial, dorsally deflected tooth at the labral apex (cf. A. aequalis : anteriorly projecting medial tooth: Fig. 115 ).

Figures

Figs. 180–183. Aedeagi of species in the Agnosthaetus nunni species-group, dorsal (left) and right lateral (right) views. 180) A. nunni; 181) A. carnelius; 182) A. enigmus; 183) A. affinis. Scale bar = 100 mm.

Figs. 184–187. Apex of median lobe of species in the Agnosthaetus nunni species-group, ventral view.

Figs. 10–13. Head capsules of Agnosthaetus spp. 10) A. stilbus; 11) A. rodmani; 12) A. brouni; 13) A. chiasma. Scale bars = 100 mm.

Figs. 23–24. Agnosthaetus cariniceps, thorax. 23) Dorsal view; 24) Left lateral view. Scale bars = 100 mm.

Figs. 177–179. Male (left) and female (right) labra of species in the Agnosthaetus nunni species-group, dorsal

Figs. 113–120. Male (left) and female (right) labra of species in the Agnosthaetus brouni species-group, dorsal (anterior margin) view. 113) A. brouni; 114) A. tumidus; 115) A. aequalis; 116) A. akatarawa; 117) A. zonatus; 118) A. bicolor; 119) A. impressus; 120) A. nitidus. Scale bar = 100 mm.