1. New East African aphids (Hem.: Aphididae);Eastop;Entomologist,1956
2. On some Eritrean aphids with descriptions of a new genus and new species (Hom. Aphididae);Hille Ris Lambers;Boll. Lab. Portici,1954
3. On the evolution of aphids;Mordvilko;Arch. Naturgesch., N.F.,1934
4. Generic classification of the hemipterous family Aphididae;Baker;U.S. Dep. Agric. Bull,1920
5. Studies of fossil aphids (Homoptera: Aphidoidea);Heie;Spolia Zool. Mus. Hauniensis,1967