The small minnow mayfly genus Cloeodes Traver (Ephemeroptera : Baetidae) in Madagascar

Cloeodes portabilis, new species, represents the first report of Cloeodes f rom Madagascar. The species is distinguished in the larval stage by the rel atively wide anteromedial emargination of the labrum, presence of tufts of fine, simple setae between the prosthecae and molae of the mandibles, sligh tly distolaterally acute segment 3 of the labial palps, and abdominal color pattern. The presence of Cloeodes throughout the Southern Hemisphere sugge sts a relatively ancient origin among extant Baetidae.