Martel, P., & Sharma, M.L. 1968 Quelques precisions sur la biologie et l'ecologie de la cochenille Phenacaspis pinifoliae (Fitch), dans le Quebec.] [Some specifics on the biology and ecology of the cochineal Phenacaspis pinifoliae (Fitch), in Quebec.]. Phytoprotection 49(1): 19-25.

Notes: Studies were performed on the evolutionary cycle of this species.