Rasina, B.P. 1966 Neue Arten der Cocciden (Coccoidea, Pseudococcidae) aus der Lettischen SSR.. Latvijas Entomologs. Riga 11: 3-29.

Notes: [Summary in German]; Pseudococcus alfredii, borchsenii, latvicus, paludicola, zirnitsi, Acanthococcus baldonensis, and Greensica baltica n. spp.