A review of the South American metalmark genus Alesa Doubleday, 1847 (Lepidoptera: Riodinidae: Eurybiini) with the description of two new species Author Santos, Wildio Ikaro Da Graça 0000-0003-3466-5820 Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, PO Box 19020, 81.531 - 980, Curitiba, Paraná, Brazil & wildio. ikaro @ gmail. com; https: // orcid. org / 0000 - 0003 - 3466 - 5820 wildio.ikaro@gmail.com Author Dolibaina, Diego Rodrigo 0000-0001-5258-3787 Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, PO Box 19020, 81.531 - 980, Curitiba, Paraná, Brazil & Reserva Serra Bonita, PO Box 001, 45.880 - 970, Camacan, Bahia, Brazil & dirodrido @ gmail. com; https: // orcid. org / 0000 - 0001 - 5258 - 3787 dirodrido@gmail.com Author Dias, Fernando Maia Silva 0000-0002-7198-7792 Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, PO Box 19020, 81.531 - 980, Curitiba, Paraná, Brazil & Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, PO Box 10011, 86.057 - 970, Londrina, Paraná, Brazil & fernandodias @ uel. br; https: // orcid. org / 0000 - 0002 - 7198 - 7792 fernandodias@uel.br Author Mielke, Olaf Hermann Hendrik 0000-0003-3655-4606 Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, PO Box 19020, 81.531 - 980, Curitiba, Paraná, Brazil & omhesp @ ufpr. br; https: // orcid. org / 0000 - 0003 - 3655 - 4606 omhesp@ufpr.br Author Casagrande, Mirna Martins 0000-0002-6076-8463 Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, PO Box 19020, 81.531 - 980, Curitiba, Paraná, Brazil & mibras @ ufpr. br; https: // orcid. org / 0000 - 0002 - 6076 - 8463 mibras@ufpr.br text Zootaxa 2023 2023-05-10 5284 1 77 120 http://dx.doi.org/10.11646/zootaxa.5284.1.3 journal article 54237 10.11646/zootaxa.5284.1.3 919ce70b-5bdc-46f5-810a-4ebaf7e54100 1175-5326 7919001 7334FB57-41A0-47CA-BCBF-FA108B13CEC1 Alesa suzana Ahrenholz & Hall, 2010 Figs 24–25 , 66 , 94 Alesa suzana Ahrenholz & Hall, 2010 , in Hall & Ahrenholz, 2010 . Trop. Lep. Res. 20 (2): 19, 21, 22, fig. 1 (male d, v), 3 (male gen.); ECUADOR : Napo , Finca San Carlo, km. 12 Tena-Puyo rd., 1°05.59’S , 77°46.98’W , 550 m , 19 Feb 2008 (D. H. Ahrenholz) (USNM).— Gallard & Fernandez, 2015 . Bull. Soc. ent. France 120 (2): 141. Diagnosis. Alesa suzana is the only species of the “ telephae group” with males without reddish spots on the wings upper side; it is also the only species in the genus with a large white band on the wings upper side postdiscal area. Female unknown. Type material. The holotype male of Alesa suzana Ahrenholz & Hall, 2010 is deposited at the USNM and has the following data: Ecuador , Napo , Finca San Carlo , 12 Km of Tena-Puyo , 1° 05.59’S , 77°46.98’W , 550m , 19.II.2008 , Ahrenholz leg. Distribution. Alesa suzana is known from two localities of low elevation in eastern Napo , Ecuador ( Fig. 94 ). Comments. Alesa suzana is the only species of the genus with an iridescent light blue sheen covering most of the wings upper side, white color in the pattern of the wings upper side, and no reddish spots on the wings upper side. In A. suzana , these reddish spots, present in all other species of the “ telephae group”, are replaced by white spots. The wing patterns of males of A. suzana (and also A. mariae sp. nov. and A. thelydrias ) are somewhat similar to females of species of the “ amesis group”. Females of A. suzana are unknown, but based on the known females of the “ telephae group”, the female of A. suzana probably have pale wing patterns, with the same white elements of the male, however, without the iridescent sheen. Alesa suzana is a rare species known only from three male specimens collected in two localities in Napo province , Ecuador , although it is probably widespread in western Amazon ( Hall & Ahrenholz 2010 ). Two of the male specimens examined to describe A. suzana were encountered perching on sunlit leaves in a hilltop between 14:10h. and 14:15h, with wings almost fully open about 12 m above the ground, being the highest perching riodinid species observed in this site ( Hall & Ahrenholz 2010 ). Examined material. ECUADOR — Napo : Finca San Carlo (12 Km of Tena-Puyo road), 550m , 19.II.2008 , 1 male , D. Ahrenholz leg. ( USNM ) ( holotype examined from images) . Tena , VII.2011 , 1 male , M. Simon leg. ( MGCL ) .