Sagola wairarapaensis Park and Carlton

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 : 82

Sagola wairarapaensis Park and Carlton , new species

( Figs. 45d, 45j , 46 )

Type Material. Holotype. NEW ZEALAND: Wairarapa: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “New Zealand WA Putangirua Stm Palliser Bay 23-Oct- 95”, “ In forest leaf litter”, “ HOLOTYPE Sagola wairarapaensis Park and Carlton 2013 ”.

Etymology. The species name is based on the biotic region of the type material, Wairarapa.

Diagnosis. This species can be distinguished from the other species of the anisarthra speciesgroup by the following combination of characters: body length 2.8 mm; antennomeres 4–11 bearing tubercles; frontal sulcus shallow, reaching midpoint of eye; anterior frontal fovea round, partially covered by frontal rostrum, posterior frontal fovea oval; eye large and prominent, one-half length of temple; male abdominal ventrite VII emarginate and surrounded by dense setae; shape of antennomeres and genitalia unique to species.

Description of Male. Length 2.7 mm. Body yellowish brown, antennae, elytra, legs, and maxillary palpi paler ( Fig. 45d ). Head: Head round, widest across eyes ( Fig. 45d ). Antennomere 1 approximately 2 times longer than wide, 2–3 subquadrate, 4–5 longer than wide, 6–7 subquadrate, 9–10 transverse, 4–11 bearing tubercles. Frontal sulcus shallow, reaching midpoint of eye. Anterior frontal fovea round, partially covered by frontal rostrum, posterior frontal fovea oval. Eye large and prominent, one-half length of temple. Thorax: Prosternum as long as wide, widest at one-third. Elytra approximately triangular ( Fig. 45d ). Hind wings reduced to small pads. Meso- and metathorax trapezoidal, as long as wide. Abdomen: Tergite IV without patches of microtrichia. Abdominal ventrite VII deeply emarginate and surrounded dense setae. Aedeagus: Median lobe elongate triangular and broader than parameres ( Fig. 45j ). Phallobase of median lobe symmetrical and rounded ( Fig. 45j ). Parameres symmetrical and long with setae apically ( Fig. 45j ).

Distribution. Wairarapa ( Fig. 46 : star).

Habitat. The holotype was collected by sifting leaf litter.

Figures

Fig. 45. Sagola species in the anisarthra species-group. Habitus, dorsal views: a) S. anisarthra, b) S. planipennis, c) S. townsendi, d) S. wairarapaensis, e) S. clarkei. Aedeagi, dorsal views: f) S. anisarthra, g) S. planipennis, h) S. planipennis, lateral view, i) S. townsendi, j) S. wairarapaensis, k) S. clarkei. S. anisarthra, male head: l) Dorsal surface, m) Ventral surface. Scale bars a–e = 1 mm, f–m = 0.1 mm.

Fig. 46. Known collection localities of New Zealand Sagola species. S. anisarthra: black circles; S. planipennis: triangles; S. townsendi: black square; S. wairarapaensis: star; S. clarkei: white circles.