Maxwell-Lefroy, H.M. 1923 . Manual of Entomology: with Special Reference to Economic Entomology. Edward Arnold & Co. London 541 pp.

Notes: Species and genera mentioned include Lecanium spp., San Jose scale, Peach scale, fluted scale Icerya, lac insect, Ceroplastes ceriferus, Llaveia, Drosicha, Monophlebulus, Guerinia, Palaeococcus, Walkeriana, Coccus, Margarodes formicarum, Orthezia insignis, Phenacoleachiinae, Conchaspis, Asterolecanium, Cerococcus, Pollinia, Kermes, Gossyparia, Eriococcus, Dactylopius, Ripersia, Pseudococcus, Tachardia, Pulvinaria psidii, P. vitis, Eulecanium, Saissetia, Chionaspis, Diaspis, Aulacaspis, Fiorinia, Aspidiotus, Chrysomphalus, Lepidosaphes and Parlatoria.