Pegazzano, F. 1948 Ricerche biologiche sulla cocciniglia S. José Comstockaspis (=Aspidiotus) perniciosa Comst. [Biological reesearch on the San José scale Comstockaspis (=Aspidiotus) perniciosus Comst.]. Annali della Facolta di Agraria. Pisa 9: 178-188.

Notes: Observations made in Italy from 1946 to 1948.