Oligoneuriella Ulmer, 1924

Massariol, Fabiana Criste, Takiya, Daniela Maeda & Salles, Frederico Falcão, 2019, Global classification and evolution of brushlegged mayflies (Insecta: Ephemeroptera: Oligoneuriidae): phylogenetic analyses of morphological and molecular data and dated historical biogeography, Zoological Journal of the Linnean Society 187, pp. 378-412 : 398

Oligoneuriella Ulmer and Oligoneuriopsis Crass.

Diagnosis

Nymph: Lateral margin of anterior projection of head without indentation; anterior surface of front tarsus with row of setae* ( Fig. 2F); posterior margin of abdominal terga without spines; lateral margin of abdominal terga without fine, simple setae; abdominal posterolateral projections present on segments IV–IX; inner margin of outer lamella of gill IV without long, simple setae.

Imago: Vein MA bifurcates next to the base of front wing; penis lobe with proximal sclerotized process* ( Fig. 4J).

Disribution

Palaearctic, Saharo-Arabian, Afrotropical and Sino-Japanese regions.