Stenus perpinguis, Puthz, 2012
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publication ID |
https://doi.org/ 10.5281/zenodo.5337424 |
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DOI |
https://doi.org/10.5281/zenodo.8392886 |
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persistent identifier |
https://treatment.plazi.org/id/03831324-7C4B-FFCF-FF01-FEDB3C36E5C8 |
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treatment provided by |
Carolina |
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scientific name |
Stenus perpinguis |
| status |
sp. nov. |
Stenus perpinguis View in CoL nov.sp. ( Figs 4 View Figs 1-16 , 20 View Figs 17-29 , 66 View Figs 55-69 )
Type material: Holotype () and 9, 13 - paratypes: Taiwan: Nantou Hsien: Yushan National Park, Mun-Li Cliff , 2700m, 18.V.1991, A. Smetana (T 86) . Paratypes: 2, 6: ibidem, 13.V.1991, idem (T 79). Chiayi Hsien: 3, 12: ibidem, 27.IV.1990, idem (T 28) ; 3, 1: Yushan National Park, Ta-Ta Ghia , 2750m, 27.IV.1990, idem (T 27).- HT and PTT in coll. Smetana (Ottawa), PTT also in cN and in cP .
Description: About as in S. persubtilis nov.sp.
Length: 3.0- 3.7mm (forebody: 1.6-1.8mm).
PM of the HT: HW: 32; DE: 16; PW: 25; PL: 25; EW: 30; EL: 26; SL: 20.
Male: Metasternum broadly and shallowly impressed, punctation coarse and dense, interstices smaller than half diameter of punctures. Anterior sternites simple, sternite 5 with a very short, broad, shallow, impunctate impression near posterior margin, sternite 6 and 7 each with a broad and deep median impression, which is extremely finely and densely punctate and pubescent, posterior margin very shallowly emarginate. Sternite 8 (fig. 4). Sternite 9 with long, light apicolateral teeth. Aedeagus (fig. 20), median lobe triangularly narrowed, apex acute, expulsion hooks contiguous; parameres much longer than median lobe, with about 10+2 long setae in apical third.
Female: Sternite 8 at posterior margin slightly projecting, rounded. Apicolateral tooth of valvifer long. Spermatheca (fig. 66), infundibulum narrow and long.
Distinctly larger than S. persubtilis , median portion of frons comparatively flat, not distinctly exceeding beyond the level of medial eye margins. Pronotum and elytra with very deep impressions, median impression of pronotum broad and broadly impunctate. Abdominal punctation less dense than in S. persubtilis , interstices on tergite 7 distinctly larger than punctures.
Comparative notes: This new species is the largest of the Taiwanese species of the S. cephalotes -group. Beside of the sexual characters it may be distinguished from most of the close relatives by the strong impunctate median impression of the pronotum and by the relatively sparse punctation of the posterior abdomen.
Etymology: Because of its robust habitus I name this species " perpinguis " (Lat.= very plump).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.