Chlorophorus fainanensis Pic 1918

Chlorophorus fainanensis Pic, 1918 Figs 1–6, 7 Chlorophorus fainanensis Pic, 1918: 4. TL: China, Taiwan. TD: MNHN. Chlorophorus (Humeromaculatus)? fainanensis Özdikmen 2022: 654, 690. Specimens examined. China • 12 ♂♂ 5 ♀♀; Anhui Province, Huangshan City, Tangkou Town, Zhaixi Village, Huangshan Wild Monkey Valley; 10–14 VII. 2014; Qiu Jianyue and Xu Hao leg. (SWU). Distribution. China (Anhui, Zhejiang, Taiwan); Japan. Redescription. Male, body length: 11.6–15.4 mm; humeral width: 2.6–3.3 mm. Female, body length: 11.1–14.0 mm; humeral width: 2.0–3.0 mm. Body moderately slender, female slightly stouter than male. Body black, covered with sulphur-yellowish or olive-green pubescence; antennae black with pale grayish pubescence. Pronotum with three or four markings, vague and small markings or a pair of dots on the center of disc, and a spot before middle of each side. Scutellum covered by yellowish pubescence; each elytron marked with three black markings: 1) an externally open arc commencing on humerus and extending around to outer portion of disc just before end of basal fourth; 2) a wide transverse band in the middle; and 3) a narrower band at apical fourth. Legs dark reddish-brown covered with grayish pubescence. Head narrow, irregularly punctured; frons wider; antennae filiform and slender, reaching the basal fourth of elytra. Third antennomere slightly longer than scape and the fourth. Pronotum rounded at sides, widest before middle, l. 2 times as long as wide at widest; apical margin distinctly narrower than base; disk slightly convex, coarsely punctate. Scutellum rounded apically, slightly longer than wide. Elytra 2.8 times as long as humeral width, parallel at side and narrowed towards apex; elytral apex truncate. Legs long and narrow; femora slightly club-shaped; mesofemora carinate internally; tibiae narrow and almost straight; metatarsomere 1 as long as remainder combined. Male genitalia. Tergite VIII as long as broad, apex truncate and moderately emarginate, and with long setae (Fig. 7 a, b); parameres elongate, base of each paramere transversely ridged ventrally, the ridge covered with setae (Fig. 7 c – e); median lobe long and slender, curved in lateral view, median struts 2 / 5 times as long as entire median lobe, ventral plate longer than dorsal plate, the apex of ventral plate pointed; median foramen rounded (Fig. 7 f, g). Remarks. Gressitt (1951) synonymized C. fainanensis with C. signaticollis Laporte de Castelnau & Gory, 1841 (= C. annulatus (Hope, 1831)) and then Holzschuh (2020) resurrected it. There is a lot of variation in the pronotal and elytral markings. The species is often confused with C. annulatus, C. hainanicus Gressitt, 1940 and C. arciferus (Chevrolat, 1863). It can be distinguished by the preapical band on the elytra and different male genitalia: parameres 2 / 5 as long as the entire tegmen, neither 3 / 5 (C. hainanicus and C. arciferus), nor 1 / 4 (C. annulatus). It is native to Taiwan and distributed in the east of mainland China Zhejiang (Lin et al. 2023) and Anhui.