Species delimitation in the genus Ochraethes Chevrolat, 1860 (Coleoptera: Cerambycidae), with description of two new species Author Pérez-Flores, Óscar 804AA7A8-B0F4-4CF3-8C28-53ABDC9D364B Laboratorio Nacional de Análisis y Síntesis Ecológica, Escuela Nacional de Estudios Superiores, Universidad Nacional Autónoma de México (UNAM), Morelia, Mexico. Colección Nacional de Insectos, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM). Av. Universidad 3000, 04510 Mexico City, Mexico. Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, 62209 Cuernavaca, Mexico. oscar_skopt@ciencias.unam.mx Author Toledo-Hernández, Víctor H. DD52F154-A504-459F-A3A1-3ADFC0662207 victor.toledo@uaem.mx text European Journal of Taxonomy 2022 2022-10-20 845 1 29 journal article 171644 10.5852/ejt.2022.845.1951 b8fe320d-1078-4308-9db7-24b23456489d 2118-9773 7234931 27631402-ECCF-4C70-A199-D995167F6196 Ochraethes sommeri ( Chevrolat, 1835 ) Clytus sommeri Chevrolat, 1835: 4 (53). Clytus tibialis Laporte & Gory, 1836: 71 . Clytus ( Ochroesthes ) circuliferus Chevrolat, 1860: 472 . Trichoxys giesberti Botero et al. 2019: 2 , syn. nov. Clytus sommeri – Laporte & Gory 1836: 72 . — White 1855: 273 . Clytus ( Ochroesthes ) sommeri – Chevrolat 1860: 474 . Ochraesthes sommeri – Thomson 1861: 219 . Ochraesthes circuliferus – Thomson 1861: 219 ; 1864: 185 . Ochrestes sommeri – Lacordaire 1869: 66 . Ochresthes sommeri – Bates 1880: 51 ; 1885: 296 (syn.). Ochresthes circuliferus – Bates 1880: 51 (distr.). Ochraethes sommeri – Aurivillius 1912: 386 (cat.). — Linsley 1935: 86 (distr.). — Blackwelder 1946: 581 (cat.). — Chemsak et al. 1992: 69 (cat.). — Monné 1993: 19 (cat.); 2005: 108 (cat.); 2021: 147 (cat.). — Chemsak & Noguera 1993: 62 (distr.). — Monné & Giesbert 1994: 116 (cat.). — Noguera & Chemsak 1996: 401 (cat.). — Monné & Hovore 2006: 46 (cat.). — MacRae et al. 2012: 175 (host). — Ordóñez-Reséndiz & Martínez-Ramos 2017: 828 (distr.). — Heffern et al. 2020: 178 . — PérezFlores et al. 2021: 466 (checklist). — Bezark 2021: 73 (checklist). Ochraethes circulifer Aurivillius 1912: 386 (cat.). Trichoxys giesberti – Pérez-Flores et al. 2021: 466 (checklist). — Bezark 2021: 75 (checklist). — Monné 2021: 159 (cat.). Chevrolat (1835) described Ochraethes pollinosus and O . sommeri in the genus Clytus , and subsequently Chevrolat (1860) included both within the Ochraethes division. Ochraethes sommeri is one of the species that exhibits pubescence varying from dark to bright, some of them have been described as different species ( O . circuliferus and Clytus tibialis ). Botero et al. (2019) described Trichoxys giesberti based on two females from Sinaloa , Mexico , which are very similar to some specimens of O . sommeri reviewed by us with the same location (including a female lacking the evident transverse bands of black pubescence on the elytra used in delimitation analyses). The blurred transverse bands of black pubescence is a character present in other species within Ochraethes . The type material of T . giesberti has the frons and scape nearly identical to those in the type specimens of O . sommeri (= O . circuliferus ), even the shape of anteclypeus and labrum is similar ( Fig. 4G–I ). The proportion of metatarsomere I (1.65× as long as II–III together) is other character to propose T . giesberti as junior synonym of O . sommeri .