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Issue: Vol. 2721 No. 1: 14 Dec. 2010
Type: Articles
Published: 2010-12-14
DOI: 10.11646/zootaxa.2721.1.7
Page range: 62–68
Abstract views: 31
PDF downloaded: 1

Two new species of Tricorythodes Ulmer, 1920 (Insecta, Ephemeroptera) from Southeastern Brazil

Programa de Pós-Graduação em Zoologia, Museu Nacional do Rio de Janeiro, Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, 21941–971, Rio de Janeiro, RJ, Brasil
Laboratório de Insetos Aquáticos, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Estado do Rio de Janeiro, 22290-240, Rio de Janeiro, RJ, Brasil
Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, 21941–971, Rio de Janeiro, RJ, Brasil
Ephemeroptera Atlantic Rainforest Neotropics Rio de Janeiro State

Abstract

Two news species of Tricorythodes are described from both, nymph and male imago: Tricorythodes chalaza sp. nov. and Tricorythodes diasae sp. nov. Imagoes of T. diasae sp. nov. can be characterized as follows: vein CuP of wings absent or incomplete; distal 3/4 of hind legs black; inner margins of styliger plate projected; penes rectangular with lateral margins sclerotized, forming two distal lobes inserted apico-dorsally with rounded margins whereas imagoes of T. chalaza sp. nov. present: vein CuP incomplete or absent; inner margins of styliger plate projected; basal swelling on segment II of forceps shaded with black; penes pyramidal with lateral margins sclerotized, divided apically.

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