title: Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America.
abstract: Caenis Stephens, 1835 is a relatively diverse South American genus of Caenidae (Ephemeroptera), with 22 recorded species, but much of its diversity remains poorly explored in this region. In the present study, two new species of Caenis with apically pointed forceps are described: Caenis amacayacu sp. nov., based on male adults from Colombia; and C. elidioi sp. nov, based on all life stages from several localities in Brazil.
authors.affiliation: Laboratório de Biodiversidade, Campus Heróis do Jenipapo, Universidade Estadual do Piauí, CEP 64280-000, Campo Maior, Piauí, Brazil.; Email: lucaslima_86@hotmail.com.
authors.forename: Lucas R C
authors.initials: LR
authors.lastname: Lima
authors.affiliation: Instituto de Biodiversidad Neotropical, Universidad Nacional de Tucumán, CONICET, Ciudad Universitaria, Horco Molle (4107), Tucumán, Argentina.; Email: carlosmolineri@gmail.com.
authors.forename: Carlos
authors.initials: C
authors.lastname: Molineri
authors.affiliation: Centro de Biociências, Laboratório de Porifera, Universidade Federal de Pernambuco, Brazil, CEP 50670-420, Recife, Pernambuco.; Email: uspinheiro@hotmail.com.
authors.forename: Ulisses
authors.initials: U
authors.lastname: Pinheiro
authors.affiliation: Laboratório de Sistemática e Ecologia de Insetos, Universidade Federal do Espírito Santo, Brazil, CEP 29933-415, São Mateus, Espírito Santo. Website: www.ephemeroptera.com.br.; Email: ffsalles@gmail.com.
authors.forename: Frederico F
authors.initials: FF
authors.lastname: Salles
mesh_terms: D000818:Animals; D001938:Brazil; D065133:Ephemeroptera / Q000033:anatomy & histology* / Q000145:classification* / Q000648:ultrastructure; D005260:Female; D008297:Male; D008855:Microscopy, Electron, Scanning; D013045:Species Specificity