1. Les cochenilles paléarctiques de la tribu des Diaspidini;Balachowsky;Inst. Pasteur (Paris) Mem. Sci.,1954
2. A check list of the Coccidae;Cockerell;Bull. Illinois Lab. Nat. Hist.,1896
3. A contribution to the knowledge of the African Coccoidea (Homoptera);De Lotto;J. ent. Soc. sth. Afr.,1967
4. Note on some British Coccidae (No. 7);Douglas;Ent. mon. Mag.,1887