First description of the nymph of Farrodes roundsi (Traver) (Ephemeroptera: Leptophlebiidae, Atalophlebiinae) with comments on its phylogenetic relationships.

DOMINGUEZ, EDUARDO; ZUÑIGA, M. DEL C.

AQUATIC INSECTS

Taylor and Francis

Lugar: New York; Año: 2009 p. 73 - 81

0165-0424

The phylogenetic relationships of the species of genus Farrodes were revised recently (Domínguez, 1999). Species of the genera Simothraulopsis and Homothraulus (components of the Farrodes lineage) and three species formerly placed in other genera – Thraulus caribbianus Traver, Thraulus roundsi Traver and Homothraulus maculatus (Needham & Murphy) were also included in the analysis. As a result, these three species (the last two known only from adults) were transferred to Farrodes. Due to the unusual genitalia and the unknown nymph of F. roundsi, some doubts about its position within the Farrodes lineage remained. Recently, we were able to rear this species from two different localities from Colombia. In this study, the nymph of F. roundsi is described for the first time. Also, the original data matrix of the group is reanalyzed with the addition of the new nymphal characters of F. roundsi and F. carioca, recently described. As a result, a more stable phylogeny was obtained, and the position of F. roundsi within the F. caribbianus group was reconfirmed.