Compere, H. 1953 An appraisal of Silvestri's work in the orient for the University of California, some misidentifications corrected, and two forms of Casca described as new species.. Bollettino del Laboratorio di Zoologia Generale e Agraria (Facolta di Sci. Agraria, Portici, Naples University) 33: 35-46.

Notes: Discussion of Silvestri's efforts to import parasites into California for control of Aonidiella aurantii, Chrysomphalus ficus and Lepidosaphes beckii. L. chinensis also mentioned.