Key to South American genera of Acanthocinini (Coleoptera, Cerambycidae Lamiinae) with erect setae on elytral surface Author Monné, Miguel A. 0000-0001-8825-3122 Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão, 20940.040 Rio de Janeiro, RJ, Brazil monne@uol.com.br Author Santos-Silva, Antonio 0000-0001-7128-1418 Museu de Zoologia, Universidade de São Paulo, São Paulo, SP, Brazil. & toncriss @ uol. com. br; https: // orcid. org / 0000 - 0001 - 7128 - 1418 toncriss@uol.com.br Author Monné, Marcela L. Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão, 20940.040 Rio de Janeiro, RJ, Brazil text Zootaxa 2020 2020-06-09 4789 2 523 553 journal article 21716 10.11646/zootaxa.4789.2.9 2170c1a8-db15-4793-a27b-e59752f7165d 1175-5326 3888664 0099C909-A570-4529-9AEC-9C863E5956E6 Cosmotoma venustulum Chevrolat, 1843 Cosmotoma Chevrolat, 1843: 269 ; Gilmour, 1955: 1 (syn.). Type locality French Guiana (Cayenne) (probably deposited at BMNH ) . Distribution French Guiana . Remarks. The combined description of the new genus with a single new species allows considering the species as described in Chevrolat (1843) . However, the original description does not allow recognizing the species. Accordingly, it is not possible to know if it is a senior synonymy of another described species. Thus, the number of described species in Cosmotoma is 12, and not 11 as currently listed. Gilmour (1955) wrongly attributed the genus to Blanchard (1845) .