Two new species of Herbrossus (Ephemeroptera: Baetidae) from Madagascar with the first generic description of the adults

Abstract

Two new species of Herbrossus (Ephemeroptera: Baetidae) are described at the larval stage and for the first time the imagoes of this genus are also described. New information on larval and imaginal stages of the type species H. edmundsorum is presented. Affinities and ecology are discussed.