Thoracostrongylus fujianensis, Yang & Zhou & Schillhammer, 2011

Yang, Zhuo, Zhou, Hong-Zhang & Schillhammer, Harald, 2011, Taxonomy of the genus Thoracostrongylus Bernhauer (Coleoptera: Staphylinidae) with descriptions of five new species from China, Journal of Natural History 45 (7 - 8), pp. 407-433 : 419-422

Thoracostrongylus fujianensis sp. nov.

( Figures 1E , 6 A–G)

Type material

Holotype. Male, CHINA: Fujian, Wuyi Mountain , [KUATUN, FUKIEN], 15.8.46, leg. Tschung Sen (NMW).

Paratypes. 2 females, CHINA: Fujian, Wuyi Mountain , [KUATUN, FUKIEN], 15.8.46, leg. Tschung Sen (NMW) ; 4 males, 2 females, Fujian, 24.6–16.7, Shiniushan , 1150 m, 25 ◦ 38’N, 118 ◦ 30’E, 2007, leg. J. Turna (NMW) ; 1 male, Fujian, 20.6– 12.7.2007, Tianbaoyanshan, NW-slopes, 25 ◦ 38’N 117 ◦ 31’E, 1100 m, leg. J. Turna (NMW) ; 1 male, Fujian, 2–28.5, Shiniushan , 1350 m, 25 ◦ 38’N 118 ◦ 28’E, 2008, leg. J. Turna (NMW) ; 3 males, Fujian, 30.6–20.7, Shan Ling , 680 m, 27 ◦ 34’N 117 ◦ 26’E, 2007, leg. J. Turna (NMW) .

Description

Measurements. Body length: 8.9 – 11.4 mm. ♂ (mean, n = 3): HL: 1.45; HW: 1.95; CL: 0.95; PO: 0.20; PL: 1.80; PW: 1.55; EL: 2.15; EW: 2.30; ELS: 1.15. ♀ (mean, n = 3): HL: 1.55; HW: 2.20; CL: 1.00; PO: 0.30; PL: 1.90; PW: 1.70; EL: 2.30; EW: 2.40; ELS: 1.15.

Male. Dark brown, dull; mandibles black, maxillary palpi, labial palpi and first four segments of antennae brown, remaining segments black; legs pale brown, femora with black ring at midlength and distal end.

Head large, transverse, distinctly wider than pronotum; eyes large and prominent, their longitudinal diameter three times as long as temporal region; vertex with a small longitudinal specular spot medially; surface densely and regularly covered with umbilicate punctures, bearing exceedingly short, brassy setae.Antennae with 1st segment longest, 2nd narrower and almost one-third as long as 1st, 3rd narrower and almost twice as long as 2nd, 4th longer than wide, 5 – 10th gradually increasing in breadth, longer than wide, last segment nearly twice as long as wide and subacuminate towards tip.

Pronotum oblong and dorsal surface convex, distinctly longer than wide, and much narrower than elytra; widest at level of large lateral seta, slightly narrowed towards rounded anterior angles, distinctly concavely narrowed towards base; anterior margin almost straight, posterior margin moderately convex, hind angles broadly rounded; punctation and pubescence similar to that on head, with brassy pubescence. Scutellum triangular, with dense, black, velvety pubescence.

Elytra subquadrate, wider than long, slightly dilated posteriorly; surface densely and finely, regularly punctate, with brassy pubescence, mixed with grey spots all over the disc.

Abdomen gradually narrowed towards apex, finely and densely punctate; 3 – 7th tergites brown, with a pair of black tomentose spots medially, 6 – 7th tergites with a patch of yellow pubescence medially and basally. Posterior margin of 8th sternite ( Figure 6A ) deeply and sharply excised medially, densely covered with short golden pubescence near and at margin; 10th tergite ( Figure 6B ) distinctly wider than long, posterior margin broadly rounded with dense, long golden pubescence. Posterior margin of 9th sternite ( Figure 6D ) triangularly emarginate medially, bearing moderately long yellow pubescence.

Male genitalia ( Figures 6 E–F) moderately sclerotized, median lobe slender; in ventral view, median lobe gradually narrowed towards obtusely pointed apex; in lateral view, apical half slightly bent dorsad, with a small process projecting dorsad at about one – fifth from apex; paramere stout, almost parallel-sided, apex slightly emarginate, with eight fine setae near apical margin.

Female. First four segments of front tarsus similar to those of male. Genital segment with second gonocoxite ( Figure 6G ) with minute stylus bearing two long apical setae; 10th tergite ( Figure 6C ) wider than long, posterior margin straight, with several long yellow setae at apical margin.

Distribution

China (Fujian).

Etymology

The species named after the type locality, Fujian Province, China .

Figures

Figure 1. (A) Thoracostrongylus acerosus sp. nov.; (B) Thoracostrongylus aduncatus sp. nov.; (C) Thoracostrongylus baoxingensis sp. nov.; (D) Thoracostrongylus diaoluoensis sp. nov.; (E) Thoracostrongylus fujianensis sp. nov.; (F) Thoracostrongylus birmanus, (Fauvel, 1895).

Figure 6. Thoracostrongylus fujianensis sp. nov., holotype, male from Fujian, China. (A) 8th sternite, male; (B) 10th tergite, male; (C) 10th tergite, female; (D) 9th sternite, male; (E) aedeagus, ventral view; (F) aedeagus, lateral view; (G) genital segment with second gonocoxite, female; Scale bar 1 mm.