Sagola otteai 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 : 141-142

Sagola otteai Park and Carlton , new species

( Figs. 68p , 60p , 70p , 73 )

Type Material. Holotype. NEW ZEALAND: Waikato: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “ NEW ZEALAND WO Mt Karioi near base 11 Oct 1981 C.F.Butcher ”, “Litter 81/96”, “ N.Z. Arthropod Collection, NZAC Private Bag 92170 AUCKLAND New Zealand”, “ HOLOTYPE Sagola otteai Park and Carlton 2013 ” . Paratypes (n = 6: 4 males; 2 females). NEW ZEALAND: Waikato : 1♂ 1♀ ( NZAC), same data as holotype ; 1♂ ( NZAC), Mt. Karioi , 11 Oct 1981, C.F. Butcher, litter 81/95 ; 2♂♂ 1♀ ( NZAC), Piripiri, Caves Reserve , 25 V 1986, C.L. Lyal, leaf litter CL480 .

Etymology. This species is named for one of the enthusiastic supporters of this study, James Ottea. He was a member of the first author’ s PhD advisory committee and provided valuable advice during this study, a major component of his dissertation.

Diagnosis. This species can be distinguished from the other species of the insignis speciesgroup by the following combination of characters: body length 2.5–2.7 mm; temporal lobe of male head distinctly projecting, exceeding eye, with flattened ventral surface; ventral surface of male head with transverse process behind mouthparts and round depression bearing three patches of dense setae; elytra subquadrate; shape of antennomeres and genitalia unique to species; known from Waikato of North Island.

Description. Length 2.5–2.7 mm. Body brown, antennae, legs, maxillary palpi, and elytra paler ( Fig. 68p ). Head: Male head triangular, widest across temples ( Fig. 69p ). Female head bluntly triangular, widest across eyes. Antennomere 1 approximately 1.5 times longer than wide, 2–8 longer than wide, 9–10 subquadrate. Frontal sulcus deep, reaching end of eye. Anterior frontal fovea round, partially covered by frontal rostrum, posterior frontal fovea round. Eye prominent, approximately one-third length of temple. Temporal lobe of male head distinctly projecting, exceeding eye and with flattened ventral surface ( Fig. 69p ). Ventral surface of male head with transverse process behind mouthparts and round depression bearing 3 patches of dense setae ( Fig. 69p ). Thorax: Prosternum as long as wide, widest at one-third length. Elytra subquadrate ( Fig. 68p ). Meso- and metathorax trapezoidal, as long as wide. Abdomen: Male tergite IV without patch of microtrichia. Aedeagus: Median lobe of genitalia widest at middle and triangular apically ( Fig. 70p ). Phallobase of median lobe symmetrical and rounded ( Fig. 70p ). Parameres symmetrical and slender, with sparse setae at apex and midpoint ( Fig. 70p ).

Distribution. Waikato ( Fig. 73 : stars).

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

Figures

Fig. 68. Habitus of Sagola species in the insignis species-group, dorsal views. a) S. insignis, b) S. hectorii, c) S. bipunctata, d) S. angulifera, e) S. eminens, f) S. robustula, g) S. pertinax, h) S. monticola, i) S. laticeps, j) S. castanea, k) S. sheldoni, l) S. mercuryensis, m) S. cuvierensis, n) S. buckleyi, o) S. brumfieldi, p) S. otteai, q) S. boudreauxae, r) S. taegyui, s) S. hanae, t) S. gyudongi, u) S. egmontensis, v) S. boonei, w) S. stewartensis, x) S. jeongnamae. Scale bars = 1 mm.

Fig. 60. Known collection localities of New Zealand Sagola species. S. misella: black circles; S. bituberata: triangles.

Fig. 70. Sagola species in the insignis species-group. Aedeagi, dorsal views: a) S. insignis, b) S. hectorii, c) S. bipunctata, d) S. angulifera, e) S. eminens, f) S. robustula, g) S. pertinax, h) S. monticola, i) S. laticeps, j) S. castanea, k) S. sheldoni, l) S. mercuryensis, m) S. cuvierensis, n) S. buckleyi, o) S. brumfieldi, p) S. otteai, q) S. boudreauxae, r) S. taegyui, s) S. hanae, t) S. gyudongi, u) S. egmontensis, v) S. boonei, w) S. stewartensis, x) S. jeongnamae. Male heads, dorsal surface: y) S. bipunctata, z) S. eminen. Scale bars = 0.1 mm.

Fig. 73. Known collection localities of New Zealand Sagola species. S. cuvierensis: black circle; S. buckleyi: triangle; S. brumfieldi: black squares; S. otteai: stars; S. boudreauxae: white circle; S. taegyui: white squares.

Fig. 69. Ventral views of male heads of Sagola species in the insignis species-group. a) Sagola insignis, b) S. hectorii, c) S. bipunctata, d) S. angulifera, e) S. eminens, f) S. robustula, g) S. pertinax, h) S. monticola, i) S. laticeps, j) S. castanea, k) S. sheldoni, l) S. mercuryensis, m) S. cuvierensis, n) S. buckleyi, o) S. brumfieldi, p) S. otteai, q) S. boudreauxae, r) S. taegyui, s) S. hanae, t) S. gyudongi, u) S. egmontensis, v) S. boonei, w) S. stewartensis, x) S. jeongnamae. Scale bars = 0.1 mm.