Baetis cerea Pictet 1843

Overview & Synopsis

Baetis cerea F.-J. Pictet, 1843Baetis cerea F.-J. Pictet, 1843 -1845: 183-184, pl. 23, fig. 2.Heptagenia flavipennis (Dufour, 1841). – Eaton, 1888: 273 (synonymization).Heptagenia longicauda (Stephens, 1836). – Kimmins, 1942a: 122 (synonymization).Accepted name: Heptagenia longicauda (Stephens, 1836).Locus typicus: “… sur les bords du lac de Genève …”.Type material: Holotype [by monotypy], male imago, not traced.Remarks: In the absence of any specimen of this species in the MHNG, we follow the synonymy proposed by Kimmins (1942a). F.-J. Pictet (1843: 193) already noticed that B. longicauda Stephens, 1836 was closely related to his B. cerea.Heptagenia longicauda is extremely rare in Switzerland, the last record from the lake of Geneva area is more than 30 years old (Sartori & Dethier, 1985).