Martel, P., & Sharma, M.L. 1970 Quelques notes sur Microweisea marginata )(LeConte), (Coleoptera: Coccinellidae), prédateur de la cochenille du pin, Phenacaspis pinifoliae (Fitch).. Annales de la Société Entomologique de Quebec 15(2): 61-65.

Notes: Title in English: [Notes on Microweisea marginata (LeConte), (Coleoptera: Coccinellidae), predator of the pine needle scale, Phenacaspis pinifoliae (Fitch).] Observations on M. marginata, an important predator of P. pinifoliae, showed that the species is univoltine and overwinters in the third larval instar. In a 12 day laboratory experiment, the larva of M. marginata punctured an average of 11 scales of P. pinifoliae. The female damaged an average of 60 scale insects in 18 days.