286 list of homopterocs insects. 



Aphis Carot^. 

 Aphis CarotEB, Koch, Pfanzenl. 112, 46, pi. 21, f. 149. 



Aphis Mahaleb. 



Aphis Mahaleb, Koch, Pfanzenl. 113, 47, pi. 21, f. 150, 151. 

 Aphis Humuli, Cat. Ho)u. 997. 



Note. — The difference by which Koch distinfruishes A. Maha- 

 leh from A. Hvmuli may be owing to the latter being a later gene- 

 ration of the former. 



Aphis Humuli. 



Aphis Humuli, Koch, Pfanzenl. 114, 4«, pi. 21, f. 152—154 

 Cat. Horn. 997. 



Aphis UxMbellatarum. 

 Aphis umbellatarum, Koch, Pfanzenl. 116, 49, pi. 21, f. 155, 156. 



Aphis Evontmi. 



Aphis Evonymi, Koch, Pfanzenl. 121, 52, pi. 22, f. 16.3, 164. 

 Cat. Horn. 987. 



Aphis Viburnt. 



Aphis Viburni, Koch, Pfanzenl. 122, 53, pi. 23, f. 165, 166. Cat. 

 Horn. 991. 



Aphis ceaccivora. 



Aphis ciaccivora, Koch, Pfanzenl. 124, 54, pi. 23, f. 167, 168. 



Aphis Malv^. 

 Aphis MalvgB, Koch, Pfanzenl. 125, 55, pi. 23, f. 169, 170. 



Aphis Rhei. 



Aphis Rhei, Koch, Pfarzenl. 127, 56, pi. 23, f. 171, 172. 

 Ajihis Rumicis, p.. Cat. Horn. 982. 



On Rheum. 



Aphis ochropus. 



Aphis ochropus, Koch, Pfanzenl. 128, 57, pi. 24, f. 173, 174. 



On Dipsacus sylvestris and on Chenopodiura. 



