Stenus perpastus, 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.8392858 |
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persistent identifier |
https://treatment.plazi.org/id/03831324-7C5C-FFD7-FF01-FC693F27E397 |
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treatment provided by |
Carolina |
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scientific name |
Stenus perpastus |
| status |
sp. nov. |
Stenus perpastus View in CoL nov.sp. ( Figs 3 View Figs 1-16 , 22 View Figs 17-29 , 54 View Figs 42-54 )
Type material: Holotype () and 3, 2 - paratypes: Taiwan: Kaohsiung Hsien: Kuanshan, Kuanshanshing Hut , 2950m, 18.IV.1992, A. Smetana (T 93) . Paratypes: 1: same as HT, 3020m, 18.IV.1992, idem (T 90) ; 3, 6: Road above Tona Forest Station , km 16-17, 1700-1800, 28.IV.1998, idem (T 190) ; 3, 1: ibidem (Fork), 1850m, 29.IV.1998, idem (T 191) ; 1: Pingtung Hsien: Peitawushan trail at 1500m, 1.V.1992, idem (T 110).- HT and PTT in cS (Ottawa), PTT also in cP and cT .
Description: Apterous, black, elytra dark brown (can be even lighter), slightly shiny, punctation of frons coarse and dense, that of pronotum and elytra, very coarse, very dense, slightly coalescent, punctation of abdomen moderately coarse and dense anteriorly, fine and dense posteriorly. Maxillary palpi reddish yellow. Base of antennae yellowish brown, club infuscate. Legs yellowish brown.
Length: 2.5-3.1mm (forebody: 1.4-1.5mm).
PM of the HT: HW: 30; DE: 15; PW: 22.7; PL: 22.7; EW: 28; EL: 23; SL: 17.5.
Male: Metasternum shallowly impressed, coarsely and densely punctate. Sternites 3-6 simple, sternite 6 with a horse-shoe like impression in posterior two thirds, which is very finely and very densely punctate and pubescent, posterior margin very shallowly emarginate, sternite 7 with a long an broad oval median impression, punctation as previous, posterior margin with a moderately shallow emargination.. Sternite 8 (fig. 3) with a narrow apical emargination, which is as deep as one sixth of the sternite’s length. Sternite 9 with long apicolateral teeth. Aedeagus (fig. 22), median lobe truncate at apex, expulsion hooks connected medially; parameres very long, broad, with 13-15 setae medially.
Female: Sternite 8 obliquely triangular at posterior margin, rounded medially. Valvifer with a long apicolateral tooth. Spermatheca (fig. 54).
Head slightly broader than elytra, frons about as in S. perpauper . Antennae and pronotum as in S. perpauper , but the punctation of the pronotum coarser and more confluent, diameter of punctures nearly as large as apical cross section of antennal segment 2. Elytra about as in the compared species, but with distinct longitudinal impressions in lateral half and near suture, the punctation slightly coarser, largest punctures as large as medial cross section of antennal segment 2. Abdomen about as in the compared species, the punctation slightly coarser. Microsculpture of the exosceleton very dense and distinct, especially that of the elytra.
Comparative notes: This new species belongs also to the S. cephalotes - group and may be distinguished from its close relatives by the sexual characters.
Etymology: Because this species is slightly more robust than f. e. S. perpauper I name it " perpastus " (Lat. =well fed).
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.