Castel-Branco, C.F. 1971 [Coccoids of S. Tomé and Principe Asterolecanium pustulans (Cockerell) and A. pustulans princeps nov. var. (Hem. Homoptera).]. Eos-/Revista Española de Entomología 46: 27-36.

Notes: A. pustulans & A. pustulans var. princeps described & illustrated; biology; biological control discussed.