Flanders, S.E., Gressitt, J.L., & Fisher, R.W. 1958 Casca chinensis, an internal parasite of California red scale.. Hilgardia 29(3): 65-91.

Notes: Casca chinensis, a parasite of Aonidiella aurantii on citrus in south China, has been regarded as a potential control of red scale in California since its discovery in 1906. This review of the attempts that have been made to import and propagate C. chinensis presents what has been learned to date about this endoparasite. Outdoor propagation in south China has been successful; however, reproduction in the laboratory and importation and colonization of the species in California have so far failed because the particular condition or conditions necessary for reproduction of the male remain unknown.