Britton, W.E. 1933 Connecticut State Entomologist thirty-second report.. Bulletin of the Connecticut Agricultural Experiment Station No. 349: 369-382.

Notes: Scales mentioned include Lepidosaphes ulmi, Chionaspis pinifoliae, Gossyparia spuria, Leucaspis japonica, Neolecanium cornuparvum, Phenacoccus acericola, Phenacoccus serratus, Pseudococcus sp., P. citri, Pulvinaria vitis, Chionaspis euonymi, Eriococcus araucariae and Saissetia hemisphaerica.