Subfamily Rhithrogeninae Lestage 1917 (stream mayfly)
Insecta - Ephemeroptera - Heptageniidae
Full reference: J. A. Lestage. 1917. Contribution à l'étude des larves de Éphémères paléarctiques. Annales de Biologie Lacustre 8:213-459
Parent taxon: Heptageniidae according to X. M. Yang et al. 2023
See also Wang and McCafferty 2004
Sister taxa: Amerogenia, Cruscolli, Ecdyonurinae, Electrogenia, Heptageniinae, Miocoenogenia, Pseudokageronia, Succinogenia
Subtaxa: Burshtynogena Cinygmatini Longiheptagenia Rhithrogenini
Ecology:
Distribution:
• Eocene of Poland (1 collection), the Russian Federation (2)
• Cretaceous of Myanmar (1)
Total: 4 collections including 7 occurrences