A new genus of the subtribe Hermanellina (Ephemeroptera: Leptophlebiidae: Atalophlebiinae) from Northern Brazil with accounts on the systematics of the group

Abstract

A new taxon of Hermanellonota or subtribe Hermanellina (Ephemeroptera: Leptophlebiidae: Atalophlebiinae) was found from Northern Brazil, in the limits of Pacaraima in Brazil and Santa Helena de Uairén in Venezuela. While nymphs of this taxon are similar to those of the genus Farrodes, the adults could not be assigned to any of the genera included in the group. In order to clarify the systematic relationship of this taxon and to provide a reliable hypothesis concerning its generic placement, we analyzed it using an available matrix from the literature and performed a new cladistic analysis. As a result we describe Rondophlebia rubra gen. nov. et sp. nov. sister to the Perissophlebiodes complex + Hermanella complex. Our analyses also shed new insights on the systematics of Hermanellonota.