Stilicoderus continentalis, Rougemont, 2015

Rougemont, Guillaume De, 2015, Studies on Stiliderus Motschulsky and Stilicoderus Sharp: biogeographical notes and descriptions of new species (Coleoptera: Staphylinidae: Paederinae), Stuttgarter Beiträge zur Naturkunde A, Neue Serie 8, pp. 113-130 : 123

Stilicoderus continentalis n. sp.

Cited as Stilicoderus continentalis in ASSING 2013 a: 59.

Holotype (♂): China, Zhejiang Prov., Lin’an County, W . Tianmu shan N. R., V. 1996, flight interception trap, leg. J. COOTER ( CRO) .

P a r a t y p e s: 1 ♀, China, Zhejiang Prov., Anji County, Long Wang Shan N. R., 14. V. 1996, flight interception trap, leg. J. COOTER ( CRO) ; 3 ♀♀, China, Fujian Prov., Wuyi Shan , ca. 800 m, N 27º75′ E 117º68′, ca. 2 km NE Tongmu vill., flight interception trap, 4.– 7. VI. 2001, leg. J. COOTER & P. HLAVÁČ ( CRO) .

F u r t h e r m a t e r i a l: 1 ex., China, Fujian Prov., Wuyi Shan, 1150 m, N 27º70′ E 117º64′, Qiliqiao–Guadun rd, 1. VI. 2001, mixed forest litter, leg. J. COOTER & P. HLAVÁČ ( CRO) ; 1 ♂, China, Sichuan Prov., Qingcheng Shan, NW Chengdu, 650– 700 m, 30.53.57 N 103.32.23 E, 3.– 4. VI. 1997, leg. M. SCHÜLKE, det. G. DE ROUGEMONT as Stilicoderus formosanus continentalis ( CVA) .

Description

Body length ca. 6.3 mm. Proportions of holotype: length of head: 91; breadth of head: 88; diameter of eye: 16; length of antenna: 153; length of pronotum: 86; breadth of pronotum: 76; length and breadth of elytra: 100; metatibia: 94; metatarsus: 58.

Fore-body black, shiny, abdomen pitchy-black, labrum, mouthparts, antennae and legs reddish brown.

Male: aedoeagus see Fig. 15 ; the parameroid lobes are broadly rounded apically, not acute as in S. formosanus (cf. aedoeagus of S. formosanus , ROUGEMONT 1996: 731, fig. 18); the apical process of the ventral blade is slightly differently shaped, broader and devoid of a small ventral tooth. Abdominal sternite VIII deeply emarginate, as in S. formosanus .

Differential diagnosis

S. continentalis n. sp. is similar in every respect to the S. formosanus except in its conspicuous pubescence and in the aedoeagus. The reddish brown pubescence of the head is fairly long (ca. 10) and erect; that of the pronotum and elytra is short (ca. 4) and erect. In S. formosanus the pubescence on all parts of the fore-body is very short (ca. 2) and inconspicuous. The apex of the ventral blade of the aedoeagus ( Fig. 15 ) of the new species is characteristic, and like the difference in pubescence, is constant over the vast range encompassed by the distances between Fujian, Zhejiang and western Sichuan.

Remark

I had assumed that this new subspecies is the representative form of S. formosanus Rougemont 1996 (described from Taiwan) in mainland China, but ASSING (2013 a) records S. formosanus from Fujian.

Figures

Figs. 11–21. Stilicoderus and Stiliderus spp., aedoeagi in lateral (a) and ventral (b) views. – 11. Stilicoderus lastianus n. sp. 12. Stilicoderus baliemensis n.sp. 13. Stilicoderus aerosoides n.sp. 14. Stilicoderus papuanus n.sp. 15. Stilicoderus continentalis n. sp. 16. Stilicoderus sarahae n.sp. 17. Stiliderus tengah n. sp. 18. Stiliderus germanus n.sp. 19. Stiliderus rugulosicollis n. sp. 20. Stiliderus brendellianus n.sp. 21. Stiliderus agostii n.sp. – Scales: 0.5 mm.