title: Taxonomic revision of the Dichotomius speciosus (Waterhouse, 1891) species group (Coleoptera: Scarabaeidae: Scarabaeinae).
abstract: The Dichotomius speciosus species group, endemic to the highlands of the Brazilian Atlantic Forest and included in the subgenus Luederwaldtinia is taxonomically revised. Dichotomius alvarengai new species and D. malyi new species are described. Dichotomius bucki is here considered to be a new synonym of D. opalescens, for which a lectotype is designated. The group, as well as its species, is diagnosed. A taxonomic key, illustrations and discussions on systematics and conservation of the group are provided.
authors.affiliation: Universidade Federal de Mato Grosso, Instituto de Biociências, Programa de Pós Graduação em Zoologia. Av. Fernando Correa da Costa, 2367. Boa Esperança. Cuiabá MT 78060-900, Brazi; Email: maldanerme@gmail.com.
authors.forename: Maria E
authors.initials: ME
authors.lastname: Maldaner
authors.affiliation: Universidade Federal de Mato Grosso, Instituto de Biociências, Programa de Pós Graduação em Ecologia e Conservação da Biodiversidade. Av. Fernando Correa da Costa, 2367. Boa Esperança. Cuiabá MT 78060-900, Brazil; Email: unknown.
authors.forename: Rafael V
authors.initials: RV
authors.lastname: Nunes
authors.affiliation: Universidade Federal de Mato Grosso, Instituto de Biociências, Departamento de Biologia e Zoologia. Av. Fernando Correa da Costa, 2367. Boa Esperança. Cuiabá MT 78060-900, Brazil; Email: unknown.
authors.forename: Fernando Z
authors.initials: FZ
authors.lastname: Vaz-de-Mello
mesh_terms: D000818:Animals; D001938:Brazil; D001517:Coleoptera / Q000033:anatomy & histology* / Q000145:classification*; D005260:Female; D065928:Forests; D008297:Male