title: A new species of Aricoris Westwood, [1851] belonging to "chilensis" group (Lepidoptera: Riodinidae).
abstract: A new species of Riodinidae from the grasslands of South Brazil, Paraguay and Argentina, Aricoris schneideri sp. nov., is described.
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: dirodrido@hotmail.com.
authors.forename: Diego Rodrigo
authors.initials: DR
authors.lastname: Dolibaina
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
authors.affiliation: Avenida Wilhelm Rotermund, 1045, ZIP Code 93.030-000, São Leopoldo, Rio Grande do Sul, Brazil.; Email: a.moser@ensinger.com.br.
authors.forename: Alfred
authors.initials: A
authors.lastname: Moser
mesh_terms: D000818:Animals; D001118:Argentina; D001938:Brazil; D005260:Female; D007915:Lepidoptera / Q000033:anatomy & histology / Q000145:classification*; D008297:Male