title: Tosta Evans, 1953 (Lepidoptera: Hesperiidae): a new species from northeast Brazil, first description of the female of Tosta tosta Evans, 1953, and placement of the genus within Achlyodini.
abstract: A new species of Tosta Evans, 1953 from northeast Brazil is described: T. pseudospeculum Siewert, Mielke & Casagrande, sp. nov. Additionally, the female of Tosta tosta Evans, 1953, the type species of the genus, is described for the first time. Illustrations of adults and male and female genitalia for all studied species are provided, as well as a discussion of the placement of the genus within the tribe Achlyodini.
authors.affiliation: Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, P.O. Box 19.020, ZIP Code 81.531-980, Curitiba, Paraná, Brazil.; Email: ricardo.siewert@gmail.com.
authors.forename: Ricardo Russo
authors.initials: RR
authors.lastname: Siewert
authors.affiliation: Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, P.O. Box 19.020, ZIP Code 81.531-980, Curitiba, Paraná, Brazil.; Email: omhesp@ufpr.br.
authors.forename: Olaf Hermann Hendrik
authors.initials: OH
authors.lastname: Mielke
authors.affiliation: Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, P.O. Box 19.020, ZIP Code 81.531-980, Curitiba, Paraná, Brazil.; Email: mibras@ufpr.br.
authors.forename: Mirna Martins
authors.initials: MM
authors.lastname: Casagrande
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D001938:Brazil; D005260:Female; D007915:Lepidoptera / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D008297:Male; D009929:Organ Size