Orsunius wunderlei, Assing, 2011
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publication ID |
https://doi.org/ 10.5281/zenodo.13146459 |
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persistent identifier |
https://treatment.plazi.org/id/AA4087E6-FFAD-FFC3-FF22-B4BBFB81FDE6 |
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treatment provided by |
Felipe |
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scientific name |
Orsunius wunderlei |
| status |
sp. nov. |
Orsunius wunderlei View in CoL nov.sp. ( Figs 1-14 View Figs 1-11 View Figs 12-19 )
T y p e m a t e r i a l: Holotype Ƌ: " Thailand, Chiang Mai, Doi Inthanon, Doi Pui, 1100- 1500 m, 10.XI.1995, P. Wunderle / Holotypus Ƌ Orsunius wunderlei sp.n. det. V. Assing 2011" (cAss). Paratypes: 43 exs.: same data as holotype (cWun, cAss, cFel, cSch, OÖLL).
D e s c r i p t i o n: Body length 4.0-5.0 mm. Habitus as in Fig. 1 View Figs 1-11 . Coloration: head and pronotum reddish; elytra reddish-yellow to reddish, with the anterior half often slightly and diffusely darker; abdomen reddish to dark-reddish, with the apical portions of segments VII and VIII yellowish; legs and antennae yellowish.
Head of transversely rectangular shape, 1.20-1.25 times as broad as long ( Fig. 2 View Figs 1-11 ); posterior margin distinctly concave in the middle; punctation coarse and dense ( Fig. 3 View Figs 1-11 ); posterior median portion of dorsal surface with small area without, or with sparse punctation; interstices glossy, in most of dorsal surface distinctly narrower than diameter of punctures, reduced to narrow ridges; sides with relatively few long dark-brown setae. Eyes large, slightly longer than postocular portion in dorsal view. Antennae slender ( Fig. 4 View Figs 1-11 ); preapical antennomeres approximately as wide as long. Ventral aspect of head with microsculpture; gular sutures anteriorly separated by a distance of approximately the width of antennomere III. Mouthparts as in Figs 5-8 View Figs 1-11 , 12-13 View Figs 12-19 .
Pronotum approximately 1.2 times as wide as long and 1.05-1.10 times as broad as head ( Fig. 2 View Figs 1-11 ); posterior angles rounded, weakly marked; lateral margins visible only in posterior two thirds when viewed from above; lateral and anterior margins with rather few and not particularly long brownish setae; punctation slightly less coarse and less dense than that of head ( Fig. 9 View Figs 1-11 ); midline broadly impunctate.
Elytra approximately 1.1 times as long as pronotum ( Fig. 2 View Figs 1-11 ); punctation very dense and fine; interstices without microsculpture. Hind wings fully developed. Protarsomeres I-IV strongly dilated ( Fig. 1 View Figs 1-11 ). Metatarsomere I longer than II and slightly shorter than the combined length of II and III.
Abdomen narrower than elytra; punctation extremely fine and dense, slightly less dense on posterior tergites; interstices with distinct microsculpture composed of isodiametric and short transverse meshes; posterior margin of tergite VII with palisade fringe.
Ƌ: sternite VII not distinctly modified; sternite VIII with truncate posterior margin ( Fig. View Figs 12-19
14); aedeagus approximately 0.9 mm long; ventral process large, laterally compressed, somewhat asymmetric in ventral view, and with apex of distinctive shape ( Figs 10-11 View Figs 1-11 ).
C o m m e n t: The possibility that the absence of long black setae on the head, pronotum, and the elytra is an artefact resulting from post-mortem treatment of the material cannot be ruled out with certainty.
E t y m o l o g y: The species is named after my dear friend and colleague Paul Wunderle, who collected the types of this species, as well as those of O. prolongatus .
C o m p a r a t i v e n o t e s: This species is characterized particularly by the morphology of the aedeagus. For characters separating it from the similar and evidently closely related O. yunnanus see the following section.
D i s t r i b u t i o n a n d n a t u r a l h i s t o r y: Thetypelocalityissituatedin the Doi Inthanon, approximately 50 km to the southwest of Chiang Mai, northern Thailand. The specimens were sifted from a ditch with deep and moist leaf litter mixed with dead wood at an altitude of 1100-1500 m in November (WUNDERLE pers. comm.).
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