Brown, C.E. 1959 Reproduction of the pine needle scale Phenacaspis pinifoliae (Fitch) (Homoptera: Diaspididae).. Canadian Entomologist 91: 529-535.
Notes: Sexes occur in equal numbers; unfertilized females do not lay eggs or produce normal scales.
Brown, C.E. 1959 Reproduction of the pine needle scale Phenacaspis pinifoliae (Fitch) (Homoptera: Diaspididae).. Canadian Entomologist 91: 529-535.
Notes: Sexes occur in equal numbers; unfertilized females do not lay eggs or produce normal scales.