1. Aphids of the Rocky Mountain region;Palmer;Thomas Say Foundation,1952
2. (Aphids of Central Asia);Nevsky;Uzbekistan Exp. Stn Prot. Plants. Tashkent,1929
3. Some new genera and species of aphids from Canada (Homoptera: Aphididae);Hille Ris Lambers;Can. Ent.,1960
4. Europae centralis Aphides. Namen, Synonyme, Wirtspflanzen, Generationzyklen;Börner;Mitt. thüring. bot. Ges.,1952
5. The plant lice, or Aphididae of Illinois;Hottes;Bull. Ill. nat. Hist. Surv.,1931