PLATE IX. Aphididae; 



1. Saltusaphis americanus Baker. 



2. Thripsaphis balli Gillette. 



3. Saltusaphis elongatus Baker. 



4. Saltusaphis flabellus Sanborn. 



5. Saltusaphis scirpus Theobald. 



6. Saltusaphis virginicus Baker. 



All greatly enlarged. (From Canadian Entomologist.) 



Photographs by Dr. A. C. Baker. 



