Goryunova, Z.S. 1964 [Intraspecific differentiation in Prospaltella (Prospatella perniciosi Tow.) the parasite of the San José scale.]. Trudy Vsesoiuznogo nauchno-issledovatel'skogo instituta zashchity rastenii [Proceedings of the All-Union Scientific-Research Inst. for Plant Prot.] 21: 40-55.

Notes: Various ecological forms due to adapatation to climate of P. perniciosi are examined for biological control potential against Diaspidiotus perniciosus in the Kuban Valley.