Tribe Ptyctini Mockford 1993 (common bark louse)
Full reference: E. L. Mockford. 1993. North American Psocoptera 1-455
Parent taxon: Psocinae according to C. Lienhard and C. N. Smithers 2002
Sister taxon: Psocini
Subtaxa: Copostigma Psocidus Trichadenotecnum
Ecology:
Distribution:
• Eocene of Poland (1 collection), the Russian Federation (5), Ukraine (1)
Total: 7 collections including 16 occurrences