†subfamily Cuspilonginae Kopylov and Rasnitsyn 2016 (stem sawfly)
Insecta - Hymenoptera - Cephidae
Full reference: D. S. Kopylov and A. P. Rasnitsyn. 2016. Cephidae (Hymenoptera) of the Mesozoic. Euroasian Entomological Journal 15(S1):78-83
Parent taxon: Cephidae according to S. B. Archibald et al. 2018
See also Kopylov and Rasnitsyn 2016
Sister taxon: Cephinae
Subtaxa: Cuspilongus
Type: Cuspilongus
Ecology:
Distribution:
• Eocene of Canada (1: British Columbia collection)
• Cretaceous of Mongolia (1)
Total: 2 collections each including a single occurrence