Signoret, V. 1870 Essai sur les cochenilles ou gallinsectes (Homoptères-Coccides), 6e partie. [Essay on the gall forming insects (Homoptera - Coccidae) - 6th Part.]. Annales de la Société Entomologique de France, (serie 4) 10: 91-110.

Notes: Discusses 4 diaspine genera and 13 species, including Targionia nigra n. gen. and sp.; discusses 10 unplaced diaspines.