Eight new species of Costanana DeLong & Freytag (Hemiptera: Cicadellidae: Gyponini): taxonomic changes, key to males, and description of Metacostana gen. nov. Author Domahovski, Alexandre C. 0B988BD5-599B-42CE-ADCB-50FC813E104E Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, Rio de Janeiro, 21941 - 971, RJ, Brazil. domahovskiac@yahoo.com.br Author Cavichioli, Rodney R. DFC42ABD-5602-4D6E-B691-49F716ECDFDC Departamento de Zoologia, Universidade Federal do Paraná. Caixa Postal 19020, Curitiba, 81531 - 980, PR, Brazil. cavich@ufpr.br text European Journal of Taxonomy 2023 2023-08-21 889 1 1 53 http://zoobank.org/52e11625-6e26-4e4f-8b15-05195087bab4 journal article 264211 10.5852/ejt.2023.889.2245 db71145d-18b1-4ad1-a2a4-72d7b8928a7d 2118-9773 8269451 52E11625-6E26-4E4F-8B15-05195087BAB4 Gypona viridans DeLong & Martinson, 1972 Fig. 21 Gypona viridans DeLong & Martinson, 1972: 168 . Costanana asymmetrica DeLong & Freytag, 1972b: 497 . Syn. nov. Material examined Holotype BRAZIL • ♂ ; “ Brasilien \ Nova Teutonia \ 27º11’S 52º23’W \ 19-7-1948 \ Fritz Plaumann ”; MZSP . Other material BRAZIL – Rio de Janeiro • 1 ♂ , holotype of Costanana asymmetrica ; “Schott \ Brasilien”; NHMW . – Minas Gerais (new record) • 1 ♂ ; Parque Nacional da Serra do Cipó ; 19°20′35″ S , 43°37′08″ W ; DZUP • 1 ♂ ; Itamarandiba ; DZUP . Remarks DeLong & Martinson (1972) described Gypona viridans based on a single male specimen from Santa Catarina State , Southtern Brazil ( Fig. 21A–B ). The holotype of Costanana asymmetrica was collected by Heinrich Wilhelm Schott, Austrian botanist taxonomist of Araceae Juss. , who spent four years in Brazil (1817–1821) studying the flora in locations in Rio de Janeiro State such as Cabo Frio, Rio Paraíba , Rio Paraibuna, Cantagalo and Cachoeira de Macacu. This species was described by DeLong & Freytag (1972b) based on this single male specimen ( Fig. 21C–E ) that strongly contrasts the other species of Costanana in having the coloration uniformly yellow, the crown surface with oblique-rugose striae (like in figure 25D), and the alar appendix undeveloped. We also studied two male specimens from Minas Gerais State , Brazil ( Fig. 21F–G ). Curiously, one of the specimens has the branched process at the left side of the aedeagus as in G. viridans and the other at the right side as in C. asymmetrica . After comparing these two specimens with the illustrations and descriptions of G. viridans and C. asymmetrica , we concluded that are no differences that can separate these two species and therefore they should be considered as synonyms.