Nazeris gutianensis Hu & Li

Hu, Jia-Yao, Tu, Yue-Ye & Li, Li-Zhen, 2016, On the Nazeris fauna of Zhejiang, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 4169 (2), pp. 361-373 : 369-370

Nazeris gutianensis Hu & Li , sp. n.

( Figs. 22–27 )

Type material. Holotype: CHINA: male: " China: Zhejiang Prov., Kaihua Co. Mt. Gutian, alt. 1200–1250 m, 29°16′N, 118°07′E, 18-VI-2013, Hu & Yu leg." ( SNUC) . Paratypes: 4 males, 3 females, same data as holotype ; 5 males, 5 females, same data, except " Xie & Lv leg." ( SNUC) ; 1 male, 2 females, same data, except " Li W.R. leg." ( SNUC) ; 3 males, 3 females, same data, except " Song X.B. leg." ( SNUC) ; 1 male, 1 female, same data, except " Zheng D.L. leg." ( SNUC) ; 3 males, 7 females, " China: Zhejiang Prov. Kaihua Co. Mt. Gutian , alt. 400–500 m, 29°14′N, 118°08′E, 19-VI-2013, Hu J.Y. leg." ( SNUC) ; 1 male, 1 female, same data, except " Song X.B. leg." ( SNUC) ; 1 female, same data, except " Yu Y.M. leg." ( SNUC) ; 4 males, 5 females, " China: Zhejiang Prov. Kaihua Co. Mt. Gutian , alt. 500–800 m, 29°15′N, 118°08′E, 21-VI-2013, Hu J.Y. leg." ( SNUC) ; 1 male, 1 female, same data, except " Song X.B. leg." ( SNUC) ; 2 males, 1 female, same data, except " Xie & Lv & Yu leg." ( SNUC) .

Description. Body length 4.8–5.6 mm; forebody length 2.5–2.9 mm.

Body ( Fig. 22 ) dark brown; antennae and legs yellowish brown.

Head as long as wide; punctation moderately dense and coarse, non-umbilicate, interstices without microsculpture; postocular portion 1.71 times as long as eye length.

Pronotum 1.14 times as long as wide, 0.88 times as broad and as long as head; punctation as dense and as coarse as that of head; midline posteriorly with short and very narrow impunctate elevation; interstices without microsculpture. Elytra 0.60 times as long as wide, 0.57 times as long and 1.08 times as broad as pronotum; punctation as dense and slightly coarser than that of pronotum; interstices without microsculpture.

Abdomen with punctation dense and rather coarse on tergites III–V, dense and less coarse on tergite VI, moderately dense and fine on tergites VII–VIII; interstices with rather fine microsculpture on apical third of tergites VII and VIII.

Male. Sternite VII ( Fig. 23 ) with posterior margin triangularly convex at middle. Sternite VIII ( Fig. 24 ) with Vshaped posterior excision. Aedeagus ( Figs. 25–27 ) with ventral process long, distinctly widened near apex in ventral view; dorso-lateral apophyses short and slender, slightly curved in ventral view, not reaching apex of ventral process.

Distribution and habitat data. The species is known only from Gutian Shan in west Zhejiang. The specimens were collected by sifting leaf litter at an altitude of 400–1250 m.

Comparative notes. The new species is similar to N. rougemonti in general appearance and aedeagal characters, but can be separated by the larger excision of male sternite VII ( Fig. 23 ), by the longer ventral process of the aedeagus and the much shorter dorso-lateral apophyses ( Figs. 25–27 ).

Etymology. The specific epithet is derived from Gutianshan, where the species was discovered.

Figures

FIGURES 22 – 27. Nazeris gutianensis 22 — habitus; 23 — male sternite VII; 24 — male sternite VIII; 25 — aedeagus, in ventral view; 26 — aedeagus, in lateral view; 27 — aedeagus, in dorsal view. Scale bars: 22: 1 mm, 23 – 27: 0.5 mm.