Stenus perpauperculus, 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 : 1438

Stenus perpauperculus nov.sp. ( Figs 46, 52 )

Type material: Holotype () and 1 - paratype: TAIWAN: Chiayi Hsien: Alishan, Nat. Scen. Area, Road 18 km 85 + Road to Youth Activation Center , ca. 2000m, forest litter, 11.IV.2006, S. Vít. - HT im MHNG, PT in cP (head in coll Betz, Tübingen).

Description:Asin S. perpauper nov.sp.

Length: 2.5-2.8mm (forebody: 1.4mm).

PM of the HT: HW: 28.5; DE: 14; PW: 21; PL: 21.5; EW: 26.5; EL: 22; SL: 16.

Male: Ventral characters as in S. perpauper . Aedeagus very similar so that of S. perpauper , apical portion of median lobe with a short, rounded, slightly prominent apex, distal portion of expulsion hooks slightly longer; parameres with 10 apical setae.

Female: Ventral characters as in S. perpauper . Spermatheca (fig. 52), infundibulum distinctly longer than in the compared species.

Comparative notes: This new species may be distinguished from S. perpauper by the slightly denser abdominal punctation: on tergite 7 interstices are about as large as punctures or only slightly smaller.

Etymology: Since it is a small inconspicuous species and very near to S. perpauper I name it " perpauperculus " (Lat. = very miserable).

Figures

Figs 42-54: Ventral aspect of aedeagus (42-45), paraglossa (46, 47), metasternum (48), spermatheca (49-54) of Stenus perpunctus nov.sp. (42, T 69, PT), S. perscitus nov.sp. (43, T28, PT), S. pertricosus nov.sp. (44, T 61, PT), S. perfectus nov.sp. (45, T 119, PT), S. perpauperculus nov.sp. (46, 52, PTT), S. pilicornis FAUVEL (47, 48), S. mysterialis PUTHZ (49), S. perpusillus nov.sp. (50), S. perpropinquus nov.sp. (51, T 52, PT), S. perpauper nov.sp. (53,T 60, PT), S. perpastus (54, T 91, PT). – Scale bar = 0.1mm (42=43-45).