Cydninae (Hemiptera, Heteroptera, Cydnidae) in Brazil: updated checklist, new records, and description of Tominotus ondulatus sp. nov. Author Avendaño, José Mauricio Laboratório de Entomologia Sistemática, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil jmavendanof@gmail.com Author Grazia, Jocelia Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil. E-mail: jocelia @ ufrgs. br. jocelia@ufrgs.br Author Schwertner, Cristiano Feldens Departamento de Ecologia e Biologia Evolutiva, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo (UNIFESP), Brazil. E-mail: schwertner @ unifesp. br. schwertner@unifesp.br text Zootaxa 2017 2017-10-09 4329 5 401 435 journal article 31871 10.11646/zootaxa.4329.5.1 09f3f499-00d5-4b1f-af77-f1db57427cdb 1175-5326 1005124 180Ca01D-3268-419D-9E07-500B15438Fce Cyrtomenus (Syllobus) grossus Dallas ( Figs. 1D , 2 ) Cyrtomenus grossus Dallas, 1851: 111 ; Walker, 1867: 148 ; Stål, 1876: 18 ; Distant, 1880: 2 ; Signoret, 1881: 198 ; Uhler, 1886: 3 ; Lethierry & Severin, 1893: 62 . Cyrtomenus (Syllobus) grossus ; Froeschner, 1960 : 520 . Material examined : 2 specimens , RJ , Itatiaia , Estação Biologica , 25-Jan-1932 , Zikán col., MNRJ ; 1 specimen , Itatiaia , Aug-1933 , Zikán col., MNRJ ; 1♀ , RS , Porto Alegre , Serro Azul , MCNZ . Distribution: Mexico, Guatemala, Brazil new rec. (RJ, RS), Ecuador. Remarks: The apex of the labium surpassing the posterior coxae and the very broad head, marked by the interocular width distinctly greater than length of head, allows the recognition of C. grossus among the other species of the genus, even C. teter , the more closely allied species according Froeschner (1960) .