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 Genus Similicloeon Kluge & Novikova 1992 = Intercloeon Kluge & Novikova 1992 , syn. n. Hierarchical name: Similicloeon /g1: Kluge 2011 : 362 Type species: Cloeon simile Eaton 1870 . Diagnosis. Larva. In contrast to Cloeon , additional dorsal lamella of tergalii without anterior-proximal projection; dorsal lamella may be absent on tergalii of some posterior pairs. Labial palp with 3rd segment (truncate) either widened, or non-widened. Cerci and paracercus with long bare last segments (as in Cloeon , in contrast to Pseudocentroptilum and Procloeon ). In contrast to Procloeon , distal part of cercus without one large spine on each segment ( Kluge & Novikova 1992: Fig. 5 : 10–13 ). Winged stages. In contrast to Cloeon , unpaired sclerotized projection of penial bridge semicircular or truncate; fore wing of female not colored. Known species without hind wings. Oviparous. Distribution. For certain known from Palaearctic Region. Composition. Similicloeon petropolitanum ( Kluge & Novikova 1992 [ Cloeon ( Intercloeon ) ]) comb. n. , Similicloeon praetextum ( Bengtsson 1914 [ Cloeon ] ) comb. n. , Similicloeon schoenemundi ( Bengtsson 1936 [ Cloeon ] ) comb. n. , Similicloeon simile ( Eaton 1870 [ Cloeon ] ) comb. n. , Similicloeon spiniventre ( Kluge & Novikova 1992 [ Cloeon ( Intercloeon ) ]) comb. n. Discussion. Originally, Intercloeon was separated from Similicloeon by widened labial palp, which was regarded to be a synapomorphy of Intercloeon and Procloeon ( Kluge & Novikova 1992 ) . Actually, this character repeatedly appears among Cloeonini, that is proven by the fact that both widened and non-widened labial palps are found among species of the holophyletic taxon Cloeon s.str.