De Lotto, G. 1974a On the status and identity of the cochineal insects (Homoptera: Coccoidea: Dactylopiidae).. Journal of the Entomological Society of Southern Africa 37: 167-193.

Notes: Discusses 9 spp. of which 4 spp. are new; list & key to spp.; description; illustrations; affinities; hosts; distribution.