Stenus perrarus, 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 : 1445

publication ID

https://doi.org/ 10.5281/zenodo.5337424

DOI

https://doi.org/10.5281/zenodo.8392882

persistent identifier

https://treatment.plazi.org/id/03831324-7C55-FFD1-FF01-FD363C62E4A6

treatment provided by

Carolina

scientific name

Stenus perrarus
status

sp. nov.

Stenus perrarus View in CoL nov.sp. ( Figs 39 View Figs 30-41 , 64 View Figs 55-69 )

Type material: Holotype () and 3 - paratypes: Taiwan: Taoyuan Hsien: Takuanshan Forest , 1650m, 17.IV.1990, A. Smetana (T 5). Paratypes: 2, 1: Taipeh Hsien: Fushan , 27.IV.1999, H. Sugaya.- HT and PTT in coll. Smetana (Ottawa), PTT also in cN and in cP.

Description: About as in S. perturbator nov.sp.

Length: 2.5-3.1mm (forebody: 1.3-1.4mm).

PM of the HT: HW: 28.8; DE: 15; PW: 21.5; PL: 23.5; EW: 27.8; EL: 23; SL: 16.

Male: Ventral characters as in S. persimplex nov.sp., but the apical emargination of sternite 8 less deep and broader (LS: ED= 51:3). Aedeagus (fig. 39), apical portion of median lobe very short, convexely narrowed, apex narrowly rounded, expulsion hooks not contiguous medially; parameres much longer than median lobe, with 9-10 apical setae.

Female: Sternite 8 at posterior margin obtusely angled triangular, apex nearly acute. Valvifer as in S. perturbator . Spermatheca (fig. 64), infundibulum at least 3x as long as broad.

In many respects very similar to S. persubtilis , but the median portion of frons less elevated, the elytral punctation slightly coarser, the abdominal punctation slightly less dense, interstices on last tergites distinctly larger than punctures.

Comparative notes: This new species resembles extremely S. persimplex nov.sp., but the head is slightly less broad, the sexual characters are different. For identification see key.

Etymology: Since I only saw few specimens I name this new species " perrarus " (Lat.= very rare).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Stenus

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