Stenus persculptus, Puthz, 2012

Puthz, V., 2012, On the Stenus LATREILLE 1797 from Taiwan with non-spotted elytra (Coleoptera, Staphylinidae) (327 Contribution to the Knowledge of Steninae), Linzer biologische Beiträge 44 (2), pp. 1431-1475 : 1440

Stenus persculptus nov.sp. ( Figs 9 , 25 , 56 )

Type material: Holotype () and 1, 3 - paratypes: Taiwan: Kaohsiung Hsien: Kuanshan Trail above Kaunshanchi Riv. , 2650m, 21.IV.1992, A. Smetana (T 95) . Paratypes: 2, 2: ibidem 2550m, 21.IV.1992, idem (T 96) ; 2, 1: ibidem 2400m, idem (T 94) ; 2, 4: ibidem 2400m, 20.VII.1993, idem (T 158) ; 4, 7: ibidem 2550, 22.VII.1993, idem (T 160) ; 1: Kuanoshing Hut , 2950m, 18.IV.1992, idem (T 93) ; 6, 3: Pingtung Hsien: Peitawushan, Kuai-Ku Hut , 2125m, 22.IV.1992, idem (T 102) ; 10, 7: ibidem 2130m, 30.IV.1992, idem (T 108) ; 12, 27: Peitawushan ridge, 2800-2900m, 28.IV.1992, idem (T 105) ; 16, 7: Peitawushan above Kuai-Ku Hut , 2680m, 29.IV.1992, idem (T 106) ; 8, 17: ibidem 2750m, 29.IV.1992, idem (T 107) ; 2: Peitawushan trail at 1500m, 1.V.1992, idem (T 110).- HT and PTT in coll. Smetana (Ottawa), PTT also in cT and in cP .

Description:Asin S. persculpturatus nov.sp.

Length: 2.8-3.3mm (forebody: 1.5-1.6mm).

PM of the HT: HW: 30.5; DE: 15.5; PW: 22.5; PL: 23; EW: 27.2; EL: 24; SL: 18.5

Male: Metasternum shallowly impressed, moderately coarsely, densely punctate. Ventral abdominal characters as in S. persculpturatus , but sternite 8 slightly deeper emarginate, emargination as deep as one fifth of the length of sternite. Aedeagus (fig. 25) very close to that of S. persculpturatus , but the apical portion of the median lobe more acute, the expulsion hooks different in shape.

Female: Sternite 8 at posterior margin triangularly projecting, apex nearly acute (fig. 9). Spermatheca (fig. 56), infundibulum short and broad.

Comparative notes:Inmostrespectsas S. persculpturatus , but the abdominal thread-like margination distinct and complete and the bump like elevated median portion of frons slightly broader impunctate. To identify this species examination of the sexual characters is necessary.

Etymology: Since the impressions on pronotum and elytra are very distinct, I name this new species " persculptus " (Lat. = distinctly sculptured).

Figures

Figs 1-16: Sternite 8 of male (1-8, 13, 14) and of female (9, 10), posterior portion of sternite 9 of male (11, 12), anterior portion of aedeagus (15, 16) of Stenus hirtellus SHARP (1), S. piliferus MOTSCHULSKY (2), S. perpastus nov.sp. (3, PT), S. perpinguis nov.sp. (4, PT), S. perpropinquus nov.sp. (5, PT), S. persimplex nov.sp. (6, PT), S. perturbator nov.sp. (7, PT), S. pervilis nov.sp. (8, PT), S. persculptus nov.sp. (9, PT), S. perspicabilis nov.sp. (10, PT), S. sugayai nov.sp. (11, PT), S. perodiosus nov.sp. (12, PT), S. ascendor (13, 15, PT), S. hanami HROMÁDKA (14, 16, HT). – Scale bar = 0.1mm (1= 2-10; 11=12; 13=14; 15=16).

Figs 17-29: Ventral aspect of aedeagus of Stenus perpusillus nov.sp. (17, PT), S. sugayai nov.sp. (18, 19: Anmashan, PTT), S. perpinguis nov.sp. (20, T 28, PT), S. perspicabilis nov.sp. (21, Lalashan, PT), S. perpastus nov.sp. (22, T 92, PT), S. mysterialis PUTHZ (23, near Tadongshan), S. pervenustus nov.sp. (24, T 138, PT), S. persculptus nov.sp. (25, T 95, PT), S. perpropinquus nov.sp. (26, T 52, PT), S. cirriostentans nov.sp. (27, PT), S. perpauper nov.sp. (28, Fenchifu, PT), S. persculpturatus nov.sp. (29, T 101, PT). – Scale bar = 0.1mm (17= 18, 19, 20= 21-29).

Figs 55-69: Spermathecae of PTT of Stenus pervenustus nov.sp. (55, T 138), S. persculptus nov.sp. (56, T 107), S. persculpturatus nov.sp. (57, T 88), S. pervilis nov.sp. (58, T 120), S. sugayai nov.sp. (59, Anmashan), S. persubtilis nov.sp. (60, T 199), S. perplicatus nov.sp. (61, Meifeng), S. perturbator nov.sp. (62, T 187), S. persimplex nov.sp. (63, T 177), S. perrarus nov.sp. (64, Fushan), S. perspicabilis nov.sp. (65, T 144), S. perpinguis nov.sp. (66, T 29), S. perodiosus nov.sp. (67, T 84), S. perpunctus nov.sp. (68, T 72), S. perversor nov.sp. (69, T 59).