1. Andricus punctatus, Bass. 



2. Biorhiza forticornis, Walsh. 



3. Andricus clavula, Bass. 



4. Cynips strobilana, O S. 



Plate C. 



5. Andricus papillatus, O.S. 



6. Andricus topiarius, Asiim. 



7. Eucosma scudderiana, Clem. 



8. Pemphigus ulmi-fuscus. 



