Nakahara, S. 1973 Notes on the genus Opuntiaspis, with a key to the species (Homoptera: Diaspididae).. Proceedings of the Entomological Society of Washington 74: 486.

Notes: O. philococcus formerly a junior syn. of O. javenensis is reinstated as a different sp.; Mytilaspis nigra Cockerell is a new syn. of O. carinata.