The interesting and complex tribe Oxycoleini (Coleoptera, Cerambycidae): a new genus, new species, and taxonomic notes Author Nascimento, Francisco Eriberto De L. 0000-0002-5047-8921 Museu de Zoologia, Universidade de São Paulo, São Paulo, Brazil & eribnascimentofl @ gmail. com; https: // orcid. org / 0000 - 0002 - 5047 - 8921 eribnascimentofl@gmail.com Author Santos-Silva, Antonio 0000-0001-7128-1418 Museu de Zoologia, Universidade de São Paulo, São Paulo, Brazil & toncriss @ uol. com. br; https: // orcid. org / 0000 - 0001 - 7128 - 1418 toncriss@uol.com.br text Zootaxa 2021 2021-11-01 5060 3 353 370 journal article 3749 10.11646/zootaxa.5060.3.3 d1467dc5-42ac-4656-b728-69cbbe44f692 1175-5326 5635847 0E9C6A17-710A-4DF7-A23F-69FAA1113F4D Oxycoleus laetus Júlio, 1997 ( Figs 36–37 ) Oxycoleus laetus Julio, 1997: 3 ; Júlio et al. , 2000: 23 ( holotype ); Martins & Galileo, 2003: 59 ; Monné, 2005: 427 (cat.); Monné & Monné, 2016: 27 ( holotype ); Monné, 2021: 623 (cat). Remarks. Júlio (1997) compared O. laetus with O. ruficollis ( Zajciw, 1964 ) . However, the species appears to be more similar to O. brasiliensis ( Tippmann, 1953 ) . Comparing the photographs of the holotype male of O. laetus and O. brasiliensis (wrongly described as a female, see Zajciw (1964) and Martins & Galileo (2003)) , the most reliable difference appears to be the length of the antennae: longer in males of O. brasiliensis (the antennae extend about a third of their length beyond the body – Tippmann (1953)) than in O. laetus (antennae surpassing elytral apex by the two last antennomeres – Júlio (1997)) . Unfortunately, the holotype and paratypes of O. laetus , as well as the holotype of O. brasiliensis were destroyed during the fire in 2018 at the MNRJ. FIGURES 32–37. 32–35) Oxymerus brachypterus (Clarke, 2008) : 32) Paratype female, dorsal habitus; 33) Paratype female, ventral habitus; 34) Paratype male, dorsal habitus; 35) Paratype male, ventral habitus. 36–37) Oxymerus laetus Júlio, 1997 , female from Brazil (Mato Grosso): 36) Dorsal habitus; 37) Ventral habitus. Júlio (1997) also reported on the elytra (translated): “elytral carina restricted to a short shining area on apical 1/6.” However, the two females examined by us have no elytral carina even on the apical area. Material examined. BRAZIL , Mato Grosso : Chapada , 2 females , no date and collector indicated ( MZSP ) .