LIST OF HOMOPTEROUS INSECTS. 995 



fourth vein ; fourth vein curved near the base, straight towards the 

 tip, a little nearer to the second fork than to the tip of the rib- 

 vein. 



a — 0. England. (In Canada Balsam). From Mr. Walker's collec- 

 tion. 



102. Aphis Crat^gi. 



Aphis Crataegi, Kalt. Mon. Pflan. i. 66, 47. Ratz. Forst. Ins. iii. 



217, 5. Walk. Ann. Nat. Hist. Ser. 2, vi. 47, 94. 

 Aphis Pyri ? Fonscol. Ann. Soc. Ent. Fr. x. 189, 32. 



Distance between the first and second veins more than twice 

 farther at the tips than at the base ; third a little farther from the 

 second at the tip than at the base, as far from the second at the 

 base as the second is from the first ; first fork much nearer to the 

 second fork than to the third vein, nearer to the third vein than 

 the third is to the second ; second fork hardly farther from the fourth 

 vein than from the first fork ; fourth vein much curved near the base, 

 almost straight towards the tip, a little nearer to the second fork 

 than to the tip of the rib-vein. 



England. 



103. Aphis Heder^. 



Aphis Hederae, Kalt. Mon. PJian. i. 89, 65. Walk. Ann. Nat. 



Hist. Ser. vi. 47. 

 Aphis Ilicis, Kalt. Mon. PJian. i. 88, 64. 



Distance between the first and second veins more than twice 

 farther at the tips than at the base ; third vein a little farther from 

 the second at the tip than at the base, as far from the second at the 

 base as the second is from the first ; first fork much nearer to the se- 

 cond fork than to the third vein, as near to the third vein as the 

 third is to the second; second fork a little nearer to the fourth vein 

 than to the first fork ; fourth vein slightly curved, much nearer to the 

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



The viviparous wingless female. Oval, dull buflf or dark red, 

 covered with a white bloom : feelers setaceous, pale yellow, rather 

 more than half the length of the body ; tips brown : mouth pale yel- 

 low, with a brown tip : nectaries dark brown, as long as one-tenth of 

 the body: legs pale yellow, moderately long ; feet and tips of the 

 shanks brown. In some instances the feelers are nearly as long as 

 the body, and the tips of the thighs are brown, 



3 s2 



