Sagola taegyui 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 : 142-143

Sagola taegyui Park and Carlton , new species

( Figs. 68r , 69r , 70r , 73 )

Type Material. Holotype. NEW ZEALAND: Bay of Plenty: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “NEW ZEALAND, BP Orete Forest Te Puia Hut Bush 15 Sep 1992 G. Hall &”, “ R.C. Henderson Sifted litter 92/50”, “N.Z. Arthropod Collection, NZAC Private Bag 92170 AUCKLAND New Zealand”, “HOLOTYPE Sagola taegyui Park and Carlton 2013 ” . Paratypes (n = 3: 2 males; 1 female). NEW ZEALAND: Taupo : 2♂♂ 1♀ ( NZAC), Ahimanawa Ra , 609m, 14 I 1972, G.W. Ramsay, litter 72/10 .

Etymology. This species is named for one of the enthusiastic supporters of this study, Tae-Gyu Kim. He is one of the first author’ s colleagues and assisted with molecular components of the phylogenetic analysis.

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 concave ventral surface; ventral surface of male head with transverse process behind mouthparts and round setose depression; male elytra rectangular, female elytra subquadrate; shape of antennomeres and genitalia unique to species.

Description. Length 2.5–2.7 mm. Body brown, antennae, legs, maxillary palpi, and elytra paler ( Fig. 68r ). Head: Male head triangular, widest across temples ( Fig. 69r ). 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 midpoint 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, with concave ventral surface ( Fig. 69r ). Ventral surface of male head with transverse process behind mouthparts and round setose depression ( Fig. 69r ). Thorax: Prosternum as long as wide, widest at one-third length. Male elytra rectangular ( Fig. 68r ), female elytra subquadrate. Male meso- and metathorax trapezoidal, longer than wide, female as long as wide. Abdomen: Male tergite IV with pair of small round patches of microtrichia, patches absent in female. Aedeagus: Median lobe of genitalia broad, with semicircular depression apically ( Fig. 70r ). Phallobase of median lobe symmetrical and rounded ( Fig. 70r ). Parameres symmetrical and slender, sparsely setose from midpoints to apices ( Fig. 70r ).

Distribution. Bay of Plenty, Taupo ( Fig. 73 : white squares).

Habitat. Specimens of this species were collected mostly 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. 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.

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.