Cloeon Leach 1815

Kluge, Nikita J., 2016, 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), Zootaxa 4107 (4), pp. 491-516 : 493

Genus Cloeon Leach 1815

Hierarchical name: Cloeon /fg2: Kluge 2011: 362

Type species: Ephemera diptera Linnaeus 1761 .

Diagnosis. Larva. Additional dorsal lamella of tergalii II–VI always present, with anterior-proximal projection (in contrast to all other taxa); additional dorsal lamella of tergalius I lanceolate, without proximal projection. Labial palp with 3rd segment (truncate) either widened, or non-widened. Cerci and paracercus with long bare last segments. In contrast to Procloeon , distal part of cercus without one large spine on each segment (several spines can be present on lateral side of each segment).

Winged stages. In male imago unpaired sclerotized projection of penial bridge conical. Female imago usually with more or less expressed coloration of costal and subcostal field; color pattern of these fields either speciesspecific, or varies individually. Known species lack hind wings. Viviparous.

Distribution. Dominate in Afrotropical and Oriental Regions; few species in Holarctic and Australia.