Borchsenius, N.S. 1934 Survey of the coccids fauna of the Black Sea Coast of the Caucasus.. Boletin del Museo de Entomologia de la Universidad del Valle Quarantine Station Abkhazia 37 pp.

Notes: List of 67 scale insects with collection data; includes Hemisphaerococcus n. gen., H. rubi n. sp. nom. nud., and Phenacoccus morrisoni n. sp., nom. nud.