Britton, W.E. 1914 Some common lady beetles of Connecticut.. Bulletin of the Connecticut Agricultural Experiment Station, Entomology Series No. 181: 1-24.

Notes: Scale species mentioned as hosts include Icerya purchasi, Phenacoccus acericola, Lepidosaphes gloveri, Phenacoccus acericola, Chionaspis pinifoliae, Chermes pinicorticis and Gossyparia spuria.