Mr. F. Walker's Descriptions of Aphides. 193 



Guer. Icon. Eegne Anim. i. t. 59. f. 15; Amyot et Serv. Hist. 

 Nat. Hemipt. G09. 1. 



' A. Dipsacij Schrank, Faun. Boic. ii. 104. 1181. 

 Aphis, Amyot, Ann. Soc. Ent. Fr. 2'*^^ serie, v. 474. 1. 

 It feeds on roses, such as Rosa spinosissima, burnet rose, R. 

 centifolia, Provence rose, i?. canina, dog rose, R. Eglanteriaj eglan- 

 tine, and in the summer it may be found on Dipsacus sylvestris, 

 wild teasel ; D. pilosus, small teasel ; Scabiosa arvensis, field 

 scabious ; S. succisa, deviFs-bit scabious ; and S. columbaria^ fine- 

 leaved scabious. It inhabits Europe and North America, and in 

 mild seasons it lives through the winter, and multiplies rapidly 

 in the beginning of February. 



The viinparous wingless female. When young it is pale green, 

 narrow, linear, and flat ; but the full-grown insect is lively grass- 

 green, oval and convex : the colour is paler towards the head, which 

 is dull yellow : there is a rim on each side of the body : the feelers 

 are dull yellow, and nearly as long as the body ; the first and the 

 second joints, the tips of the following, and the whole of the 

 seventh joint are brown ; the fourth joint is rather more than 

 half the length of the third ; the fifth is a little shorter than the 

 fourth ; the sixth is less than half the length of the fifth ; the 

 seventh is nearly as long as the third : the mouth is green ; its tip 

 and the eyes are brown : the nectaries are dull pale green with 

 brown tips, and are nearly as long as one-fourth of the body : 

 the legs are long and green ; the tips of the thighs are brown ; 

 the shanks are hairy ; their tips and the feet arc dark brown. 



1st variety. Pale red while young. 



2nd variety. Yellowish green : the head and the feelers are 

 brown. 



3rd variety. The feelers are green ; the tips of the third and 

 of the following joints and the whole of the seventh joint are 

 brown. 



4th variety. The nectaries are brown. 



5th variety. The nectaries and the tips of the thighs are black. 



6th variety. Of a delicate pink colour mottled with yellow. 



7th variety. Purple. In the autumn. 



8th variety. Brown. In the autumn. 



9th variety. Bright orange : the abdomen is green beneath, 

 and has a large oblong grass-green spot on its back. In No- 

 vember. 



10th variety. The feelers and the nectaries are white with 

 black tips, and the latter are also white towards the base. 



11th variety. Pale flesh-colour. There are sometimes whole 

 colonies of this variety, and I have seen them living throughout 

 the winter, and surviving a very severe frost. 



12th variety. The body is green : the feelers are black, longer 



