†subfamily Heminemourinae Chen 2025 (spring stonefly)
Insecta - Plecoptera - Nemouridae
Full reference: Z. Chen. 2025. Heminemourinae, a new subfamily of stoneflies in Eocene Baltic amber (Plecoptera: Nemouridae). Paleontological Journal 59:723-728
Parent taxon: Nemouridae according to Z. Chen 2025
Sister taxa: Amphinemurinae, Nemourinae, Parvinemoura
Subtaxa: Heminemoura
Type: Heminemoura
Ecology: volant detritivore-omnivore
Distribution: found only at Baltic Amber (ICJUST CZT Chen amber collection) (Eocene of Russian Federation)