954 LIST OF HOMOPTEROUS INSECTS. 



Group 16. Walk. Ann. Nat. Hist. Ser. 2, ii.46. 



32. Aphis Bufo. 



Aphis bufo, Holiday, MSS. Walk. Ann. Nat Hist. Ser. 2, 46, 31. 

 Great Britain. 



Group 17. Walk. Ann. Nat. Hist. Ser. 2, ii. 47. 



33. Aphis serrulatus. 



Atheroides serrulatus, Holiday, Ann. Nat. Hist. 1839, 189. 

 Aphis serrulatus, Walk. Ann. Nat. Hist. Ser. 2, ii. 47, 32. 



a — d. Ireland. (In Canada Balsam). Presented by F. Walker, Esq. 



Group 18. Walk. Ann. Nat. Hist. Ser. 2, ii. 95. 



34. Aphis Piceje. 



Aphis Picea?, Panz. Faun. Ins. Germ, lxxviii. 22. Fair. Syst. 

 Rhyn. 302, 56. Zett. Faun. Lapp. i. 557, 1. Ins. Lapp. i. 310, 



1. Ann. Nat. Hist. 1848, 95. Walk. Ann. Nat. Hist. Ser. 



2, ii. 95, 33. 



Lachnus grossus, Kalt. Ent. Zeitung, 1846, 175. 



Aphis ? Sch'dffer, Icon. Ins. Ratisb. pi. 222, f. 4, 5. 



Rib-vein very slightly approaching the fore border, hardly 

 again receding from it, forming a slightly obtuse angle close to its 

 tip; brand near half the length of the wing; first branch-vein 

 slightly oblique, very slightly undulating, six times farther from the 

 second at the tip than it is at the base ; second very oblique, slightly 

 undulating, much nearer to the first than to the third at the base, 

 but much farther at the tip ; third straight, as oblique as the second, 

 much more distant from it at the tip than at the base ; forks very 

 long; first at the tip a little nearer to the third vein, than the third 

 is to the second ; and more than twice farther from the third than it 

 is from the second fork ; second fork much nearer to the fourth vein 

 than to the first ; fourth long, straight. 



a — c. Grimsel, Switzerland. Presented by the Entomological So- 

 ciety. 



