Naddia nanlingensis Yang & Zhou, 2010

Yang, Zhuo & Zhou, Hong-Zhang, 2010, Three new species of Naddia Fauvel (Coleoptera: Staphylinidae) from China, Zootaxa 2531 (1), pp. 1-14 : 3-5

1. Naddia nanlingensis Yang & Zhou , sp. n.

( Figs. 1A–K )

Type material. Holotype: CHINA: Guangdong: ♂, Nanling, Xiaohuang Mountain [N24.89881°, E113.01946°], 1500 m, 3–9.VII.2008, Lei Gao collected ( IZCAS) . Paratypes: CHINA: Guangdong: 2♀♀, same data as holotype ( IZCAS) ; ♀, Nanling, Shikengkong [N24.5547°, E112.5737°], 1500 m, 3–9.VII.2008, Lei Gao collected ( IZCAS) ; ♀, Nanling, Ruyang [N24.92579°, E113.01638°], 1030 m, 19.VII.2008, Rongrong Wang collected ( IZCAS) .

Description. Body length: 19.6–20.9 mm.

Female measurements (mean, n = 4): HL: 3.54; HW: 3.82; CL: 0.98; PO: 2.40; PL: 3.75; PW: 3.38; EL: 3.35; EW: 3.74; ELS: 1.57.

Male measurements (n = 1): HL: 3.43; HW: 3.53; CL: 0.98; PO: 2.25; PL: 3.35; PW: 3.08; EL: 3.23; EW: 3.32; ELS: 1.67.

Male. Body elongate, black, dull, pubescence on sides of 3–5 th abdominal tergites and base of 7 th abdominal tergite silver-yellow, pubescence of 6 th, 8–9 th and remaining part of 7 th tergite black. Maxillary palpi brown, apex of last segment slightly paler, tibiae yellow and tarsi brown.

Head ( Fig. 1A ) large, subquadrate, not widened backward, sides almost straight; eyes small, oval, distinctly protruding, but not from lateral outline of head, longitudinal diameter much shorter than postocular area; base broadly and shallowly emarginate, posterior angles obviously protruding backward with apices rounded; surface densely covered with umbilicate punctures, with short yellow pubescence. Antennae ( Fig. 1G ) short and stout, hardly reaching midlength of pronotum, moderately thickened and more opaque apicad, last segment asymmetrical, sharply pointed; ratios of antennomere length (1 to 11) as follows: 20:17:15:14:15:16:13:15:22:13:30.

Pronotum nearly horseshoe-shaped and convex, longer than wide, slightly narrower than head, widest at anterior margin, anterior margin raised medially, sides subparallel, gradually narrowed toward base; anterior angles pointed, posterior angles widely rounded; surface densely and regularly covered with umbilicate punctures, coarser anteriorly; with shiny impunctate midline, becoming indistinct and almost obsolete at about midlength; pubescence similar to that on head. Scutellum triangular, densely covered with black velvety pubescence.

Elytra short, nearly quadrate, slightly dilated posteriad, wider than long, a little shorter and broader than pronotum; sides straight, posterior margin slightly emarginate medially; surface feebly and densely punctate, covered with dense black and sparse golden yellow pubescence.

Abdomen elongate and gradually widened posteriad; surface finely and densely punctate, 3–5 th tergites with black pubescence in middle and patches of yellow pubescence laterally, patches gradually decreasing in size towards apex, 7 th tergite also with transverse patch of golden pubescence at base; posterior margin of 8 th sternite ( Fig. 1B ) broadly and deeply emarginate medially, surface of tergite bearing moderately long golden pubescence. 10 th tergite ( Fig. 1C ) with golden pubescence in basal half, 9 th sternite ( Fig. 1E ) triangularly excised in middle of posterior margin and with pyramid-shaped deep depression at base.

Legs robust, first four protarsal segments markedly dilated, sub-bilobed, each covered with golden setae.

Aedeagus ( Figs. 1H–K ) symmetrical; median lobe elongate, with weakly sclerotized middle part and globular basal part, in ventral view median lobe feebly narrowed towards round apex, in lateral view moderately curved ventrad; paramere ( Fig. 1H ) degenerate, very fine and slender, with four short setae medioapically.

Female. First four protarsal segments similar to those of male. Second gonocoxite ( Fig. 1F ) with minute stylus bearing two equally long apical setae, basal half of second gonocoxite with long golden setae. 10 th tergite ( Fig. 1D ) triangular, moderately wide, apex broadly arcuate, with long golden setae at and near apical margin.

Distribution. China (Guangdong).

Notes. In general appearance, the present new species is similar to Naddia taiwanensis Shibata, 1979 from Taiwan, but the latter has distinctly divergent posterior areas of head, orange-red pubescence on the elytra and shiny impunctate midline on pronotum.

Etymology. The species is named after the type locality, Nanling National Nature Reserve in Guangdong Province, China.

Figures

FIGURES 1A–K. Naddia nanlingensis Yang & Zhou sp. n., male (A–C, E, G–K, holotype) and female (D, F, paratype). A—head; B—8th sternite; C–D—10th tergite; E—9th sternite; F—detail of genital segment with second gonocoxite; G— antennae; H—detail of paramere; I—aedeagus, ventral view; J—aedeagus, lateral view; K—aedeagus, dorsal view. Scale bar 1mm.