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Articles
Published: 2019-12-19

A new species of Thraulodes Ulmer (Ephemeroptera: Leptophlebiidae) from the Atlantic Forests of Southeastern Brazil

Programa de Pós-Graduação em Entomologia, Universidade Federal de Viçosa, 36570-900, Minas Gerais, Brazil Coordenação de Vigilância Ambiental, Subsecretaria de Vigilância em Saúde, Secretaria de Estado de Saúde do Rio de Janeiro, 20031-142, Rio de Janeiro, Brazil
Programa de Pós-Graduação em Entomologia, Universidade Federal de Viçosa, 36570-900, Minas Gerais, Brazil Museu de Entomologia, Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900, Minas Gerais, Brazil
Museu de Entomologia, Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900, Minas Gerais, Brazil
Ephemeroptera mayflies taxonomy Neotropics South America Atalophlebiinae

Abstract

A new species of Thraulodes Ulmer, 1920 (Ephemeroptera: Leptophlebiidae) from Southeastern Brazil is described based on male imago and nymphs. The new species is apparently related to T. luisae Souto, Da-Silva & Nessimian, 2014, T. pinga Souto, Da-Silva & Nessimian, 2014, T. pelicanus Mariano & Froehlich, 2011, and T. flinti Domínguez, 1987, but can be distinguished from them and from the other species of the genus based on the following characteristics: male imagos with two cross-veins basal to bullae, terga II–V with a spot close to posterior margin, penes short with spines long and narrow; nymphs are distinguished by the presence of 8–9 denticles on tarsal claws, pre-apical denticle much larger than others, and terga II–VI brown with a single posteromedial dark mark.