Tribe Cinygmatini Kluge 1988 (stream mayfly)
Insecta - Ephemeroptera - Heptageniidae
Alternative spelling: Cinygmini
Full reference: N. J. Kluge. 1988. Reviziya rodov sem. Heptageniidae (Ephemeroptera). I. Diagnozy trib, rodov i podrodov podsem. Heptageniinae. Entomologichskoe Obozrenie 67:291-313
Parent taxon: Rhithrogeninae according to T. Q. Wang and W. P. McCafferty 2004
See also Kluge 1988
Sister taxa: Burshtynogena, Longiheptagenia, Rhithrogenini
Subtaxa: Cinygma
Ecology:
Distribution: found only at Baltic Amber, Humboldt Museum Simon collection (Eocene of Russian Federation)