Sagola threekingsensis 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 : 70

Sagola threekingsensis Park and Carlton , new species

( Figs. 37f , 38f , 40 )

Type Material. Holotype. NEW ZEALAND: Three Kings Islands : 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “ NEW ZEALAND: TH: Tasman Valley 24 XI 1970, G. Kuschel Litter 70/210”, “ HOLOTYPE Sagola threekingsensis Park and Carlton 2013 ”.

Etymology. This species is named after the type locality, Three Kings Islands.

Diagnosis. This species can be distinguished from the other species of the auripila speciesgroup by the following combination of characters: larger body, length 1.8 mm; antennomere 1 with dull surface, 2–8 subquadrate; frontal sulcus deep, reaching vertexal fovea; gular region of male head depressed transversely; shape of genitalia unique to species; only known from Three Kings Islands.

Description of Male. Length 1.8 mm. Body brown, antennae, legs, maxillary palpi, and elytra paler ( Fig. 37f ). Head: Round, widest across eyes ( Fig. 37f ). Gular region of ventral surface of head depressed transversely. Antennomere 1 approximately 1.5 times longer than wide, with dull surface, 2–8 subquadrate, 9–10 weakly transverse. Frontal sulcus deep, reaching vertexal fovea from frontal rostrum. Anterior frontal fovea round and covered by frontal rostrum, posterior frontal fovea elongate. Eye small, approximately one-third length of temple. Thorax: Prosternum as long as wide, widest at midpoint. Elytra approximately triangular ( Fig. 37f ). Meso- and metathorax trapezoidal, as long as wide. Aedeagus: Median lobe as long as paramere, with triangular apical lobe ( Fig. 38f ). Phallobase of median lobe symmetrical and rounded ( Fig. 38f ). Parameres asymmetrical, right weakly curved and divided, left rectangular ( Fig. 38f ).

Distribution. Three Kings Islands ( Fig. 40 : black square).

Habitat. Specimens of this species were collected by sifting leaf litter.

Figures

Fig. 37. Habitus of Sagola species in the auripila species-group, dorsal views. a) S. auripila, b) S. spiniventris,

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.