LIST OF HOMOPTEROUS INSECTS. 953 



Group 14. Walk. Ann. Nut, Hist. Ser. 2, ii. 43. 



27. Aphis Glyceric. 



Aphis Glyceriae, Kalt. Man. PJian. i. 113, 87. Walk. Ann. Nat. 

 Hist. Ser. 2, ii. 43, 26. 



Rib-vein hardly approaching the fore border, not receding 

 again from it, forming an extremely slight angle ; first branch-vein 

 slightly oblique, more than twice farther from the second at the tip 

 than it is at the base ; second oblique ; third very oblique, nearer to 

 the second at the base and at the lip than the second is to the first ; 

 tip of the third vein much nearer to the first fork than to the second 

 vein, and as far from the first fork as the space between the forks, or 

 that between the second fork and the fourth vein ; fourth vein rather 

 long, slightly curved near the base, much nearer at the tip to the 

 second fork than to the tip of the rib-vein. 



a—q. England. (In Canada Balsam). From Mr. Walker's collec- 

 tion. 



28. Aphis littoealis. 



Aphis littoralis. Walk. Ann. Nat. Hist. Ser. 2, ii. 44, 27. 

 England. 



29. Aphis hirtellus. 



Atheroides hirtellus, Haliday, Ann. Nat. Hist. 1838, 189. 

 Aphis hirtellus. Walk. Ann. Nat. Hist. Ser. 2, ii. 45, 28. 



a. England. Presented by F. Walker, Esq. 



30. Aphis Cyperi. 



Aphis Cyperi, Walk. Ann. Nat. Hist. Ser. 2, ii. 45, 29. 

 Ireland. 



Group 15. Walk. Ann. Nat. Hist. Ser. 2, ii. 46. 



31. Aphis Eriophori. 



Aphis Eriophori, Walk. Ann. Nat. Hist. Ser. 2, ii. 46, 30. 



a — d. Ireland. (In Canada Balsam). From Mr. Walker's collection. 



