Psallus is a genus of mostly Palaearctic, Oriental and Nearctic plant bugs in the family Miridae. There are more than 160 described species in Psallus.
Kerzhner, I. M.; Josifov, M. (1999). Aukema, Berend; Rieger, Christian (eds.). Catalogue of the Heteroptera of the Palaearctic Region, Vol. 3: Cimicimorpha II: Miridae. The Netherlands Entomological Society. ISBN978-90-71912-19-1.