Marlatt, C.L. 1915 Scale insects and mites on citrus trees.. Farmer's Bulletin (United States Department of Agriculture) No. 172.

Notes: The scales reviewed are Aspidiotus aurantii, A. ficus, Ceroplastes cirripediformis, C. floridensis, Chionaspis citri, Dactylopius citri, Icerya purchasi, Lecanium hemisphaericum, L. hesperidum, L. oleae, Mytilaspis citricola, M. gloveri and Parlatoria pergandei.