Nazeris furcatus Hu, Li & Zhao

Hu, Jiayao, Li, Lizhen & Zhao, Meijun, 2011, Twelve new species of the Genus Nazeris Fauvel from Zhejiang Province, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 2797, pp. 1-20 : 3-5

Nazeris furcatus Hu, Li & Zhao , sp. nov.

( Figs. 2 , 18–22 )

Type material. Holotype: CHINA: Zhejiang Prov.: ɗ, Wenzhou City, Taishun County, Wuyanling, 700 m, 9.V.2004, HU Jia-Yao, TANG Liang & ZHU Li-Long leg. Paratypes: CHINA: Zhejiang Prov.: 4ΨΨ, same data as holotype; 5ɗɗ, 4ΨΨ, Wenzhou City, Taishun County, Wuyanling, 700 m, 20.VIII.2004, HU Jia-Yao, TANG Liang & ZHU Li-Long leg.; 3ɗɗ, Wenzhou City, Taishun County, Wuyanling, 700 m, 23.VIII.2004, HU Jia-Yao, TANG Liang & ZHU Li-Long leg.; 6ɗɗ, 3ΨΨ, Wenzhou City, Taishun County, Wuyanling, 1000–1300 m, 24.VIII.2004, HU Jia-Yao, TANG Liang & ZHU Li-Long leg.

Description. Body length: 5.2–6.2 mm; forebody length: 3.0– 3.3 mm.

Body ( Fig. 2 ) elongate, brown, with labrum, coxae and two basal antennal segments reddish yellow; the remaining antennal segments, maxillary palpi and legs except for coxae yellow.

Head suborbicular, slightly longer than broad (length/width = 1.05); postocular portion 1.69 times as long as eye length; on disk intervals between punctures flat, not raised like carinae. Antennae slender, extending to basal 1/ 3 of pronotum; relative length of each segment from 1 to 11: 21.0: 6.0: 13.5: 10.5: 9.5: 9.5: 9.5: 8.5: 7.5: 7.0: 9.0; relative width of each segment from 1 to 11: 5.0: 3.5: 3.0: 3.0: 3.0: 3.0: 3.0: 3.0: 3.0:3.0: 4.0.

Pronotum convex and oval, longer than wide (length/width = 1.19), narrower (pronotum/head = 0.89) than and as long as head; prosternum with strong longitudinal median carina not reaching its anterior margin. Elytra as long as wide, distinctly shorter (elytra/pronotum = 0.82) and slightly narrower (elytra/pronotum = 0.97) than pronotum.

Abdomen with fine and faint microsculpture only on apical 1/3 of 7th tergite.

Male. Seventh sternite ( Fig. 18 ) slightly and widely emarginate in the middle of posterior margin; 8th sternite ( Fig. 19 ) widely and triangularly excised in the middle of posterior margin. Aedeagus ( Figs. 20–22 ) distinctly sclerotized; median lobe in dorsal view distinctly bifurcate at apex, with pair of finger-like outward processes in apical 1/3, in lateral view curved ventrad subapically; dorso-lateral apophyses stout in basal half and much thinner in apical half, cone-shaped, projecting inwards at middle, extending beyond apex of median lobe.

Female. Seventh and 8th sternites simple.

Remarks. The present new species can be easily distinguished from all the known species of Nazeris by the distinct shape of the aedeagus, particularly the apically bifurcate median lobe and the cone-shaped dorso-lateral apophyses ( Fig. 20 ).

Distribution. China (Zhejiang Prov.).

Etymology. The species name is the Latin adjective “ furcatus ” (forked) referring to the distinct shape of the median lobe.

Figures

FIGURES 1 – 12. Habitus of Nazeris. 1 — N. parabrunneus sp. nov.; 2 — N. furcatus sp. nov.; 3 — N. yanyingae sp. nov.; 4 — N. niutoushanus sp. nov.; 5 — N. shenshanjiai sp. nov.; 6 — N. nigritulus sp. nov.; 7 — N. tianmuensis sp. nov.; 8 — N. yandangensis sp. nov.; 9 — N. jiulongshanus sp. nov.; 10 — N. zhujingwenae sp. nov.; 11 — N. baishanzuensis sp. nov.; 12 — N. lijinweni sp. nov. Scale bars 1 mm.

FIGURES 18 – 22. Details of Nazeris furcatus sp. nov. 18 — male 7 th sternite; 19 — male 8 th sternite; 20 — aedeagus in dorsal view; 21 — aedeagus in lateral view; 22 — aedeagus in ventral view. Scale bar 0.5 mm.