Stenus biluminatus, Puthz, 2011

Puthz, V, 2011, On the Stenus LATREILLE 1797 from Taiwan with spotted elytra including remarks on the S. gestroi-group (Coleoptera, Staphylinidae) (316 Contribution to the Knowledge of Steninae), Linzer biologische Beiträge 43 (1), pp. 565-596 : 590-591

Stenus biluminatus nov.sp. ( Figs 68 , 83 , 94, 102 )

T y p e m a t e r i a l: Holotype and 2 - paratypes: TAIWAN: Nantou Hsien: Nankaoshan , 1.5 km SW Tenchi Hut, 2830 m, 6.V.1992, leg. A. Smetana (T 116) . Paratypes: 1, 1: Tenchi Hut , 2900 m, 5.V.1992 (T 114) ; 1: 2.5 km SW Tenchi Hut , 2720 m, 6.V.1992 (T 115) all leg. A. SMETANA.- HT and PTT in coll SMETANA (Ottawa), PTT also in cP .

Highly similar to S. bilunatoides , but the shape of the expulsion clasp of the median lobe different (figs 83, 94). The spermatheca about as in S. bilunatus (fig. 102).

Length: 5.8-6.8 mm (forebody: 2.8-3.1 mm).

PM of the HT: HW: 49; DE: 28; PW: 38.5; PL: 42; EW: 48; EL: 49; SL: 39; SpL: 21.

C o m p a r a t i v e n o t e s: At the present state the specimens described here could not been included into the variability range of S. bilunatoides and should therefore been regarded as a separate species. (SpL: EW = 0.39-0.45, ø 0.41, N=5; HW: EW = 0.99- 1.03; ø 1.01, N=5).- For identification amongst the Taiwanese species see key.

E t y m o l o g y:" biluminatus " (Lat.) = furnished with two lights (= elytral spots).

Figures

Figs 46-69: Ventral aspect of the anterior portion of median lobe of Stenus gestroi FAUVEL (46, lectotype; 47, Carin Cheba; 48, Cameron Hills; 49, Arni Gad; 50, Doi Pui; 51, Shishitou 1; 52, Shishitou 2; 53, Luyeh; 54, Tokara Is.; 56, Wuyi Mts.), S. cephalo PUTHZ (55, Sumatra), S. lacertosus L. BENICK (57, Java), S. bilunatus PUTHZ (58, HT; 59, Piluchi; 60, Arisan; 61, T 28; 62, T 48; 63, T 149), S. bigemmosus nov.sp. (64, HT), S. bigemmatus nov.sp. (65, HT), S. bilunatior nov.sp. (PTT, 66, T 43 a; 67, T 43 b), S. biluminatus nov.sp. (68, HT), S. bistigmosus nov.sp. (69, HT). Scale bar = 0.1 mm.

Figs 70-88: Anterior portion of the expulsion clasp of the aedeagus (70-84), posterior portion of sternite 9 (85-88) of Stenus coronatus L. BENICK (70, Yun Shan; 71, 35 km N. Lijiang; 72, Zhongdian Co.), S. coronatus zipanguensis PUTHZ (73, Mt. Kurofu; 74, Shirane), S. bilunatus PUTHZ (75, T 48a; 76, T 48b; 77, Piluchi; 78, T 110), S. bigemmatus nov.sp. (79, HT), S. bigemmosus nov.sp. (80, HT), S. bilunatior nov.sp. (PT, 81, T 43a; 82, 87, T 43b), S. biluminatus nov.sp. (83, PT, T 116), S. bistigmosus nov.sp. (84, 86, HT), S. stigmosus nov.sp. (PT, T 16), S. electrigemmeus nov.sp. (88, HT). Scale bar = 0.1 mm.

Figs 89-107: Anterior portion of the expulsion clasp of the aedeagus (89-95), trochanter of male (96), ventral aspect of aedeagus (97, 106, 107), metasternum of males (98-101), spermatheca and valvifera (102-105) of Stenus bilunatus PUTHZ (89, Chiayi Co.; 100, T 110; 105, Fenchihu; 106, T 28), S. bigemmosus nov.sp. (90, PT, Wulai), S. bigemmatus nov.sp. (91, 96, HT), S. bilunatoides nov.sp. (92, PT, T 22); S. bistigmosus nov.sp. (93, HT), S. biluminatus nov.sp. (94, T 11), S. rougemonti PUTHZ (95, HT), S. arisanus CAMERON (97, Alishan), S. coronatus L. BENICK (98, Yan Shan), S. coronatus zipanguensis PUTHZ (99, Mt. Kurofu), S. shibataianus nov.sp. (101, PT, Tengchih), S. biluminatus nov.sp. (102, PT, T 48), S. bilunatior nov.sp. (103, PT, T 133), S. bilunatoides nov.sp. (104, PT, T 71), S. miwai BERNHAUER (107, Keitou).