On the Italian species of the ecdyonurus lateralis group (ephemeroptera, heptageniidae)?

Abstract

Taxonomy and nomenclature of the Italian members of the Ecdyonurus lateralis group are reviewed, the three Italian species are keyed. Ecdyonurus grandiae sp. n. (= Heptagenia lateralis sensu Grandi, 1953) is named, some characters of E. lateralis (Curtis, 1834)(= E concii Grandi, 1953; s y n . n.) and E. gridellii (Grandi, 1953) are also described. Lectotypes are designated for E. concii and E. gridellii.