Sagola chandleri 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 : 69

Sagola chandleri Park and Carlton , new species

( Figs. 37e , 38e , 40 )

Type Material. Holotype. NEW ZEALAND: Wellington: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “ NEW ZEALAND WN Wilton Bush 4/1/93 Wellington ”, “in fallen Astelia ”, “ HOLOTYPE Sagola chandleri Park and Carlton 2013 ”. The original label does not mention who collected this specimen, but the collector was J. T. Nunn . Paratypes (n = 5: 4 males; 1 female). NEW ZEALAND: Rangitikei : 1♂ ( JTN), Ruahine FP, entrance Wharite , 22 X 1994, J. Nunn ; Wairarapa: 1♂ ( JTN), West L Wairarapa Res., 3 X 1995, J. Nunn ; Wanganui: 1♂ ( JTN), Ashhurst Domain , 25 X 1993, J. Nunn; Wellington : 1♂ 1♀ ( JTN), same data as holotype .

Etymology. This species is named for worldrenown beetle specialist and one of the most influential specialists of Pselaphinae during modern time, Donald S. Chandler.

Diagnosis. This species can be distinguished from the other species of the auripila speciesgroup by the following combination of characters: body larger, length 2.1–2.3 mm; male antennomeres 5–10 weakly enlarged; frontal sulcus linear and deep, slightly exceeding posterior margin of eye; male hind femur with triangular process at middle of mesal margin; shape of antennomeres and genitalia unique to species.

Description. Length 2.1–2.3 mm. Body brown, antennae, legs, maxillary palpi, and elytra paler ( Fig. 37e ). Head: Round, widest across eyes ( Fig. 37e ). Antennomere 1 approximately 1.5 times longer than wide, 2 longer than wide, 3 subquadrate, 4 longer than wide, 5–10 subquadrate, male 5–10 weakly enlarged. Frontal sulcus deep, reaching just behind eye. Anterior frontal fovea round, posterior frontal fovea oval. Eye small, approximately one-third length of temple. Thorax: Prosternum as long as wide, widest at midpoint. Elytra approximately triangular ( Fig. 37e ). Meso-and metathorax trapezoidal, as long as wide. Male hind femur with triangular process on middle of inside edge. Aedeagus: Median lobe simple ( Fig. 38e ). Phallobase of median lobe symmetrical and rectangular ( Fig. 38e ). Parameres symmetrical and weakly curved with 4–5 setae apically and 1 seta preapically ( Fig. 38e ).

Distribution. Rangitikei, Wairarapa, Wanganui, Wellington ( Fig. 40 : triangles).

Habitat. Specimens of this species were collected by sifting forest litter or fallen Astelia Banks & Sol. ex R. Br. (Asteliaceae) .

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.