Subfamily Tetrastichinae Förster 1856 (chalcid wasp)
Insecta - Hymenoptera - Eulophidae
Alternative spelling: Tetrastichoidae
Full reference: A. Förster. 1856. Hymenopterologische Studien, II Heft, Chalcidiae und Proctotrupii 1-152
Parent taxon: Eulophidae according to T. C. Domer and R. A. Burks 2020
Sister taxa: Entedoninae, Eulophinae, Paraeulophites, Trigonopterites
Subtaxa: Kressleinius
Ecology:
Distribution: found only at Baltic Amber, Staatliches Museum fur Naturkunde (SMNS) collection (Eocene of Russian Federation)