Britton, W.E. 1924 Connecticut State Entomologist, Thirty-third report.. Bulletin of the Connecticut Agricultural Experiment Station No. 360: 387-404.

Notes: Aspidiotus perniciosus, A. abietis, A. tsugae, Chionaspis pinifoliae, Diaspis carueli, Fiorinia japonica, Kermes sp., Lecanium fletcheri, L. ulmi, Leucaspis japonica, Neolecanium cornuparvum, Pseudococcus comstocki, Pulvinaria acericola, P. vitis, Toumeyella liriodendri, Chionaspis euonymi, Eriococcus azaleae, Lecanium excrescens, Lepidosaphes newsteadi, L. ulmi, and Saissetia hemisphaerica recorded during the year; hosts.