Hargreaves, E. 1927 Some insect pests of Sierra Leone.. Proceedings of the First West African Agricultural Conference. Lagos, Nigeria 196 pp.
Notes: [Conference held at Ibadan, Nigeria, March, 1927.] Scale pests mentioned include Dinaspis annae and mussel scale on citrus, Aspidiotus destructor, A. elaeidis, A. glowdei, Ctenochiton argborescens, Pinnaspis buxi, Selenaspidis articulatus and S. kamerunicus on coconut. Parasites and predators also mentioned.