Ward, R. 1890 Notes on scale and other parasitical insects.. Timehri. Journal of the Royal Agricultural and Commercial Society of British Guiana (Georgetown) 4 (n.s.): 302-311.

Notes: Discusses general appearance, damage and hosts for Aspidiotus personatus, Carteria lacca, Cerataphis lutaniae, Ceroplastes vinsoni, Chionaspis citri, Ischnaspis filiformis, Lecanium mangiferum, L. testudo, Mytilaspis buxi, Orthezia insignis, Planchonia fimbriata, Vinsonia stellifera and mealybugs.