Mekongellina, a new mayfly genus of the subfamily Brachycercinae (Ephemeroptera: Caenidae) from Thailand

Abstract

Abstract The new genus Mekongellina from Thailand with the type species Mekongellina sangpradubae is described herein. The genus shows highly modified characters, particularly on head, forelegs and prothorax, together forming a filtering apparatus. It is tentatively attributed to the tribe Brachycercini.