Stenus bilunatior, 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 : 589

publication ID

https://doi.org/ 10.5281/zenodo.5324778

persistent identifier

https://treatment.plazi.org/id/EB098780-5A19-3820-9292-9507F87CC145

treatment provided by

Carolina

scientific name

Stenus bilunatior
status

sp. nov.

Stenus bilunatior View in CoL nov.sp. ( Figs 41 View Figs 26-45 , 66, 67 View Figs 46-69 , 81, 82, 87 View Figs 70-88 , 103 View Figs 89-107 )

T y p e m a t e r i a l: Holotype and 2 - paratypes: TAIWAN: Taichung Hsien : Anmashan, 2230 m, 4.V.1990, leg. A SMETANA (T 43) . Paratypes: 2: same data as HT, 1.V.1990 (T 33) ; 2: ibidem 2225 m, 2.V.1990 (T 37); 1: ibidem, 11.V.1992 (T 123); 1, 1: ibidem 2230 m, 12.V.1992 (T 127); 1, 1: Pingtung Hsien: Peitawushan, Kuai-Ku Hut , 2325 m, 21.V.1991 (T 88) ; 1: ibidem 2750 m, 22.V.1991 (T 89); 1, 1: Peitawushan ridge, 2800-2910 m, 28.IV.1992 (T 105), all leg. A. SMETANA.- HT and PTT in coll. SMETANA (Ottawa), PTT also in cP .

D e s c r i p t i o n: Macropterous, black with a faint lustre, each elytron with a very long orange spot in lateral half (fig. 41); punctuation of the forebody very coarse, on pronotum and elytra shortkly rugose, coarse and very dense on abdomen; pubescence short, recumbent. Antennae brown, club infuscate. Maxillary palpi reddish yellow, segment 3 infuscate. Paraglossae coniform. Legs reddish brown, apical portion of femora and of tarsal segments slightly infuscate. Clypeus black, labrum blackish brown, anterior margin brown, moderately densely pubescent.

Length: 5.2-7.0 mm (forebody: 3.0- 3.4 mm).

PM of the HT: HW: 50; DE: 29; PW: 39; PL: 43; EW: 50; EL: 51.5; SL: 40; SpL: 40.

M a l e: Very similar to S. bilunatus , but the anterior portion of the median lobe narrower (figs 66, 67) and the shape of the anterior expulsion clasp different (figs 81, 82).

F e m a l e: About as in S. bilunatus (fig.103).

C o m p a r a t i v e n o t e s: In most respects very similar to S. bilunatus , but the elytral spot much larger (two thirds as long as one elytron or even longer) and narrowed anteriad, the punctuation of the posterior tergites variegate, interstices on tergite 7 distinctly smaller or distinctly larger than punctures. - For identification amongst the Taiwanese species see key.

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

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Stenus

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