LIST OF HOMOPTEEOUS INSECTS. 27^ 



4. Chaitophorus Ononidis. 



Chaitophoms Ononidis, Koch, PJianzenl, 5, 4, pi. 1, f. 7. 

 Aphis Ononidis, Cat. Horn. 999. 



5. Chaitophoelis Capre^. 



Chaitophoms Capreag, Koch, PJlanzenL 6, 5, pi. 2, f. 8, 9. 

 Aphis Capreas, Cut, Horn. 980. 



6. Chaitophorus annulatus. 

 Chaitophoms annulatus, Koch, PJianzeiil. 7, 6, pi. 2, f. 10, 11. 



On leaves of Betula. 



7. Chaitophorus Tremul.^. 



Chaitophorus Tremuhp, Koch,, PJianzenl. 8, 7, pi. 2, f. 12. 

 Aphis Populi, var. F {Kalt.) Cat. Horn. 948. 



8. Chaitophorus tricolor. 



Chaitophoms tricolor, Koch, PJianzenl.. 9, 8, pi. 2, f. 13. 

 Aphis hetularia? {Kalt.) Cat. Horn. 1006. 



On leaves of Betula. 



9. Chaitophorus versicolor. 



Chaitophorus versicolor, Koch, PJianzenl. 10, 9, pi. 3, f. 14, 15. 

 Aphis Populi, var. P (Kalt.) Cat. Bom. 948. 



On Populus nigra. 



10. Chaitophorus Popull 



Chaitophorus Populi, Koch, PJianzenl. 12, 10, pi. 3, f. 16, 17, 

 Aphis Populi, Cat. Horn. 948. 



2 B 



