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Zenodo
2026
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| Διαθέσιμο Online: | https://doi.org/10.5281/zenodo.20346334 |
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Πίνακας περιεχομένων:
- <p><i>Oedichirus biwenxuani</i> Tang & Peng sp. nov.</p><p>Figs 1 B, 3</p><p><b>Type material.</b></p><p><i>Holotype</i>. China – <b>Yunnan</b> • ♂; glued on a card with two labels as follows: “ China: Yunnan Prov., Yingjiang Co., Nabang Town, 300 m, 23. V. 2013, Wen-Xuan Bi leg. ” “ HOLOTYPE: <i>Oedichirus biwenxuani</i> Tang & Peng, 2026, new species. ” [red handwritten label]; (SNUC).</p><p><b>Description.</b></p><p>Measurements (in mm) and ratios: BL: 7.89; FL: 3.44; HL: 0.82; HW: 1.19; AnL: 2.16; PL: 1.19; PW: 1.12; EL: 1.23; EW: 1.53; AL: 1.25; HW / HL: 1.45; HW / PW: 1.06; HL / PL: 0.69; PW / PL: 0.94; EL / PL: 1.03.</p><p><i>Habitus</i> as in Fig. 1 B. Coloration: head and apex of abdomen black; antennae brown to light brown; pronotum and first four abdominal segments red; elytra black, with posterior third red; legs light brown.</p><p><i>Head</i> transverse, broadest across eyes. Lateral contours behind eyes converged sharply with basal angles distinct. Dorsal surface with coarse and sparse punctures. <i>Eyes</i> strongly convex, 2.56 times as long as distance from posterior margin of eye to posterior constriction.</p><p><i>Pronotum</i> approximately as broad as head, widest anteriorly and gently tapering posteriorly. Median dorsal portion convex, surface with coarse and sparse punctures, weakly larger and denser than those on head, longitudinally midline area of pronotum without punctures.</p><p><i>Elytra</i> nearly square, surface with moderately dense and coarse punctures, distinctly denser than those on head and pronotum. Humeral angles and wings well developed.</p><p><i>Abdomen</i> with dense punctures, arranged in rows; punctures on segments III – VI weakly denser than on segments VII – VIII. Interstices with fine and very shallow microsculpture; posterior margin of tergite VII with palisade fringe.</p><p><b>Male</b>. Sternites VI – VII unmodified. Sternite VIII (Fig. 3 A) with conspicuously asymmetrical posterior excision and apical ctenidium composed of stout pectinate setae. Tergite IX (Fig. 3 B) with posterior processes 1.03 times as long as median portion of tergite IX. Sternite IX shaped as in Fig. 3 B. Aedeagus (Fig. 3 D, E) nearly symmetrical; ventral process short and stout, subapically without conspicuous processes pointing ventrad. Parameres moderately long and slender.</p><p><b>Female</b>. Unknown.</p><p><b>Distribution.</b></p><p>The species is currently known only from Nabang Town, located in western Yingjiang County, western Yunnan Province, China.</p><p><b>Etymology.</b></p><p>Named after Mr Wen-Xuan Bi (Shanghai, China), the collector of the holotype and a specialist on Cerambycidae.</p><p><b>Comparative notes.</b></p><p>Based on the coloration of the body, the morphology of the aedeagus and the male secondary sexual characters, <i>O. biwenxuani</i> is undoubtedly closely related to <i>O. sihanouki</i> Rougemont, 2018 and allied species distributed in the Oriental region, and attributed to the <i>O. alatus</i> group (Rougemont, 2018 b). <i>Oedichirus biwenxuani</i> can be distinguished from <i>O. sihanouki</i> Rougemont, 2018 by the slenderer pronotum, the shape and chaetotaxy of the male sternite VIII, and the slenderer aedeagus in lateral view. For illustrations of <i>O. sihanouki</i> see Rougemont (2018 b: fig. 8).</p>