Nazeris luoi Hu & Li

Hu, Jia-Yao, Li, Li-Zhen & Zhao, Mei-Jun, 2012, Six new species of Nazeris Fauvel (Coleoptera, Staphylinidae, Paederinae) from Guangxi, South China, Zootaxa 3399, pp. 35-44 : 37

Nazeris luoi Hu & Li , sp. n.

( Figs. 7–12 )

Type material. Holotype: male, labeled ' China: Guangxi Province / Jinxiu County / Dayaoshan N. R. / 16 km / alt. 850–950 m / 24-VII-2011 / HU & YIN leg. Paratypes: 3 males, 6 females, same labeled data as holotype; 1 male, 1 female, same data, except alt. 800–950 m / 29-VII-2011 / HU & YIN leg.

Description. Body length 4.3–5.4 mm; forebody length 2.6–2.7 mm.

Male. Body ( Fig. 7 ) reddish brown, with abdominal segment VII somewhat darker, antennal segments (except for basal two ones), maxillary palpi and legs (except for coxae) yellow.

Head about as long as wide; postocular portion 1.85 times as long as eye length; with umbilicate punctation coarse and dense. Antennae slender; relative length (width) of each antennomere from I to XI as 34.0 (8.0): 12.0 (6.0): 22.0 (4.5): 19.0 (5.0): 18.0 (5.0): 18.0 (5.0): 16.0 (5.0): 15.0 (5.0): 15.0 (5.0): 13.0 (5.5): 17.0 (6.0).

Pronotum longer than wide (length/width = 1.17), narrower than (pronotum/head = 0.88) and as long as head; prosternum with strong longitudinal median carina extending to anterior margin. Elytra shorter than wide (length/ width = 0.93), shorter (elytra/pronotum = 0.78) and narrower (elytra/pronotum = 0.97) than pronotum.

Abdomen elongate, tergites lacking microsculpture. Sternite VII ( Fig. 8 ) with posterior margin slightly emarginated at middle, area anterior to emargination not depressed. Sternite VIII ( Fig. 9 ) with posterior margin triangularly concaved at middle. Aedeagus ( Figs. 10–12 ) well sclerotized; median lobe with lateral margins angularly expanded laterally twice near apex in dorsal or ventral view, with pair of round laminae near apical fourth on dorsal side and apical tubercles on ventral side, with truncate apex; dorso-lateral apophysis strong, distinctly narrowed below apices, slightly curved mesally in dorsal or ventral view and distinctly curved dorsally in lateral view, extending much beyond apex of median lobe.

Female. Sternites VII and VIII simple. Other characters similar to those of male.

Distribution. South China: Guangxi.

Remarks. Sharing with N. fujianensis a similar general appearance, but can be separated by the postocular portion being 1.85 times as long as eye length (1.54 times in N. fujianensis ), and aedeagus with the dorso-lateral apophysis lacking mesal process at apical third, while N. fujianensis has the dorso-lateral apophysis with a long mesal process at apical third (Hu et al. 2010: 353, fig. 7).

Etymology. The species is named in honor of Bao-Ting Luo (Administration of Dayaoshan National Nature Reserve) who helped a lot during our collection in Guangxi.

Figures

FIGURES 7 – 12. Nazeris luoi sp. n. 7 — habitus; 8 — male sternite VII; 9 — male sternite VIII; 10 — aedeagus, in dorsal view; 11 — aedeagus, in lateral view; 12 — aedeagus, in ventral view. Scale bars: a = 1 mm, b = 0.5 mm.