A new subgenus Oculogaster subgen. n. for viviparous representatives of Procloeon s. l., with discussion about status of the generic name Austrocloeon Barnard 1932 and the species name africanum Esben-Petersen 1913 [Cloeon] (Ephemeroptera, Baetidae) Author Kluge, Nikita J. text Zootaxa 2016 4107 4 491 516 journal article 39139 10.11646/zootaxa.4107.4.2 96189ebc-493c-44ef-9e46-1bf2af20c3e1 1175-5326 271360 5CBAACB4-2A65-4766-8339-33D65C93FF9B Tribe Cloeonini Newman 1853 Branch “6”: Kluge & Novikova 1992 : Fig. 11 Hierarchical name: Cloeon /fg1: Kluge 2011 : 362 Diagnosis. Larva. Labial palp with 3rd segment truncate and 2nd segment non-widened. Patella-tibial suture equally developed on all legs, often interrupted on outer side and continued by row of fine setae ( Figs 20 , 56 ; Kluge & Novikova 1992 : Fig. 1 : 1, 2). Claws slightly bent, symmetric, either with two equal rows of denticles, or without denticles. At least abdominal segment IX with denticles on lateral sides. Tergalii able to rhythmical respiratory movements. Tergalii without anal rib, anal margin with or without flap forming additional dorsal lamella. Pose of developing subimaginal gonostyli in mature larva of the « Cloeon - type », i.e. with 2nd segments directed laterally and 3rd segments bent medially ( Kluge & Novikova 1992: Fig. 5 ). Winged stages. Fore wing with no more than one intercalary vein in each space. Hind wing either absent, or of the « Centroptilum - type », i.e. narrow, with 2 longitudinal veins and always with hooked costal process. Postsubalar sclerite (well visible on subimaginal exuviae) has posterior-dorsal process narrow, with concave dorsal margin ( Fig. 37 ). Subimaginal tarsi of all legs covered by pointed microlepides, without blunt microlepides. In male imago apices of gonovectes fused with penial bridge; penial bridge medially with unpaired sclerotized projection ( Figs 30 , 65 ). Gonostyli with 2nd segment widened apically, 3rd (terminal) segment small and petiolate ( Figs 30 , 65 ). Composition. Includes genera Cloeon , Similicloeon , Pseudocentroptilum and Procloeon .