1. Annecke, D. P. &Insley, H. P. — 1971. Catalogue of EthiopianEncyrtidae andAphelinidae [Hymenoptera: Chalcidoidea] —Entomol. Mem. Dep. Agric. Tech. Serv. Report. S. Afr., 23, 1–53.
2. Anonymous — 1968. Scale insects, mealy bugs and lac insects. —Plts. Bull. Rubb. Res. Inst. Malaya., 98, 146–152.
3. Chua, Tock Hing — 1972. Studies on the chalcidoid parasites [Hymenoptera] ofSaissetia nigra (Nietner) andS. coffeae (Walker) [Coocidae: Homoptera]. —M. Sc. Thesis, Univ. Malaya, Kuala Lumpur, Malaysia.
4. Chua, Tock Hing — 1976. The chalcidoid parasites of the scale insectsSaissetia nigra (Nietner) andS. coffeae (Wlk.) in Malaysia —Malay. Nat. J., 29, 134–146.
5. Flanders, S. E. — 1942. Biological observations on the citricola scale and its parasites. —J. Econ. Entomol., 35, 830–837.