Stenus pervenustus nov. spec. (Figs 24, 55)

Type material: Holotype () and 1, 2 - paratypes: Taiwan: Kaohsiung Hsien: Peinantashan trail, 2400m, 4.VII.1993, A. Smetana (T 135) . Paratypes: 24, 21: ibidem, 2500m, 4.VII.1993, idem (T 136); 1: ibidem, 2250m, 4.VII.1993, idem (T 137); 56, 37: ibidem, 2390-2490m, 6.VII.1993, idem (T 138); 8, 9: ibidem, 2080m, 6.VII.1993, idem (T 141); 5, 2: ibidem, 2450m, 2.V.1995, idem (T 170); 7, 1: ibidem, 2400m, 3.V.1995, idem (T 171); 2: Peinantashan trail, ridge at 2800m, 3.VII.1993, idem (T 134).- HT and PTT in coll. Smetana (Ottawa), PTT also in cP and in cT .

Description:Asin S. persculpuratus nov.sp.

Length: 3.0- 3.5mm (forebody: 1.5-1.6mm).

PM of the HT: HW: 30.5; DE: 16; PW: 23; PL: 23; EW: 28.5; EL: 25; SL: 18.

Male: Metasternum shallowly impressed, coarsely and densely punctate. Sternites 3 and 4 very finely and very densely punctate and pubescent medially, sternite 5 with a shallow median impression, punctation and pubescence as previous, sternite 6 with a horse-shoe like impression in posterior two thirds, its punctation even finer and denser than in previous sternites, posterior margin very shallowly emarginate, sternite 7 with a broad and long median impression, punctation and pubescence as previous, posterior margin with a moderately deep, narrow posterior emargination. Sternite 8 with a narrow emargination nearly in posterior quarter of the sternite. Sternite 9 with moderately long apicolateral teeth. Aedeagus (fig. 24), apex of median lobe triangularly narrowed and curved dorsally, expulsion hooks connected medially; parameres slightly longer than median lobe, with 10-15 apical setae.

Female: Sternite 8 at posterior margin triangularly projecting, apex rounded. Valvifer with a moderately long tooth apicolaterally. Spermatheca (fig. 55), infundibulum about twice as long as broad.

Comparative notes: Having regard to the variability in most respects as S. persculpturatus and S. persculptus . This species may be also distinguished from its close relatives by examining the sexual characters.

Etymology: Because this species is not very conspicuous I name it " pervenustus " (Lat. =very modest).