Ochraethes brevicornis ( Chevrolat, 1860 )

Pérez-Flores, Óscar & Toledo-Hernández, Víctor H., 2022, Species delimitation in the genus Ochraethes Chevrolat, 1860 (Coleoptera: Cerambycidae), with description of two new species, European Journal of Taxonomy 845, pp. 1-29 : 20

Ochraethes brevicornis ( Chevrolat, 1860)

Clytus (Ochroesthes) brevicornis Chevrolat, 1860: 480 .

Clytus (Ochroesthes) virescens Chevrolat, 1860: 481 , syn. nov.

Ochrestes brevicornis – Lacordaire 1869: 66.

Ochrestes virescens – Lacordaire 1869: 66.

Ochresthes brevicornis – Bates 1880: 52 (distr.).

Ochresthes virescens – Bates 1880: 52 (distr.).

Ochraethes brevicornis – Aurivillius 1912: 386 (cat.). — Chemsak & Linsley 1974: 183. — Chemsak et al. 1992: 69 (cat.). — Monné 1993: 18 (cat.); 2005: 106 (cat.); 2021: 144 (cat.). — Monné & Giesbert 1994: 116 (cat.). — Noguera & Chemsak 1996: 401 (cat.). — Monné & Hovore 2006: 46 (cat.). — Wappes et al. 2018: 3. — Pérez-Flores et al. 2021: 465 (checklist). — Bezark 2019: 405 (distr.); 2021: 74 (checklist);

Ochraethes virescens – Aurivillius 1912: 386 (cat.). — Chemsak & Linsley 1974: 183. — Chemsak et al. 1992: 70 (cat.). — Monné 1993: 20 (cat.); 2005: 109 (cat.); Monné 2021: 148 (cat.). — Monné & Giesbert 1994: 116 (cat.). — Noguera & Chemsak 1996: 401 (cat.). — Monné & Hovore 2006: 46 (cat.). — MacRae et al. 2012: 176. — Pérez-Flores et al. 2021: 466 (checklist). — Bezark 2021: 74 (checklist);.

Triodoclytus brevicornis – Linsley 1935: 86 (distr.). — Blackwelder 1946: 581 (cat.).

Triodoclytus virescens – Linsley 1935: 87 (distr.). — Blackwelder 1946: 581 (cat.).

When Chevrolat (1860) described the genus as a subgenus of Clytus , he included two very similar species, O. brevicornis and O. virescens . According to Chevrolat (1860), O. brevicornis and O. virescens are similar (“Cet insecte [ O. brevicornis ] est très voisin du Cl. virescens ”), but the latter differs in the antennomeres VI–XI longer, antennal coloration, and prothorax longer than width. In this case, sexual dimorphism is evident (similar to O. viridiventris ). In females, the antennae are always shorter with the last antennomeres wider, the pubescence is sligtly darker (bright in some specimens), and the longitudinal line of light-yellow pubescence that extends from the scutellum to elytral apex is more visible. On the other hand, the males have the brightest pubescence on the body, and the longitudinal band on the elytra is evident, and with the transverse pubescent band near half of the elytra less obvious, but always present. The prothorax and apex of the elytra are features nearly identical in the type material of both species. The frons and the shape of the anteclypeus and labrum ( Fig. 4A–B ) are other diagnostic characters to propose O. virescens as a junior synonym of O. brevicornis .

Figures

Fig. 4.Head, frontal view of type species of Ochraethes. A. Ochraethes brevicornis (Chevrolat, 1860),♀. B. O. virescens (Chevrolat, 1860), ♂. C. O. cinereolus (Bates, 1892) comb. nov., ♀. D. O. octomaculata Chemsak & Noguera, 2001, ♂. E. O. obliquus (Chevrolat, 1860), ♂. F. O. zebratus Bates, 1885, ♀. G. O. sommeri (Chevrolat, 1835), ♂. H. O. circuliferus (Chevrolat, 1860) (= Ochraethes sommeri), ♀. I. Trichoxys giesberti Botero et al., 2019, ♀. J. O. viridiventris (Chevrolat, 1860), ♂. K. O. nigritus Bates, 1892 (= Ochraethes viridiventris), ♂. L. O. clerinus Bates, 1892, ♀. M. O. z-littera (Chevrolat, 1860), ♂. N. O. cristoforii (Chevrolat, 1860), ♂. O. O. litura Bates, 1885, ♀.