412 Forty-sixth Report on the State Museum 

 Siphonopbora rudbecki^ {Fitch). Ajyhis rudbecMce Fitch. 



Hhopalosijyhum Koch. 

 Rhopalosij)lium [Fitch). Aphis herheridis Fitch. 



3fyzus Pass. 

 Myzus cerasi (Fabr.). Aphis eerasi Fabr. Fitch. 



Ajjhis Linn. 

 Aphis brassicse Linn. 



Aphis cornifolioe Ftch. Types (nearly destroyed) in U. S. N, M. 

 Aphis cratoegifoliiB Fitch. Types (nearly destroyed) in U. S. N. M. 

 Aphis cerasicolens Fitch. 

 Aphis mali Fabr. 

 Aphis malifoliffi Fitch. 



Aphis pinicolens Fitch. Type (without abdomen) in U. S. N. M. 

 Ajjhis sambucifolifB Fitch. Type in U. S. N. INI. 



Subfamily Callipterinte. 

 ChaitopJioriis Koch. 

 Chaitophorus aceris {Linn.). Aphis aceris Linn. Fitch. 

 Chaitophorus populifolise (Fitch). Aphis popuU/olics Fitch. 

 Chaitophorus populi {Linn.). Jjachnus popvli Linn. Fitch. 



Callipterus Koch. 

 Callipterus betulaicolens {Fitcli). Aphis hetulmcolens Fitch. 



Subfamily Lachnina;'. 



LAichnus Illiger. 



Lachnus abietis Fitch. Types (nearly destroyed) in U. S. N. M. 

 Lachnus alnifolia Fitch. Types (nearly destroyed) in U. S. N. M. 

 Lachnus quercifolise Fitch. Types (nearly destroyed) in U. S. N. M. 

 Lachnus salicellis Fitch. 

 Lachnus strobi {Fitch). Friosoma slrohi Fitch. Types in L^. S. N, M. 



Subfamih^ Schizoneurinre. 

 Schizoneura Hartig. 



Schizoneura imbricator {Fitch). Friosoma imbricator Fitch. 

 Schizoneura ulmi {Linn.). Lxichnus idmi Linn. Fitch. Specimens 

 in U. S. N. M. 



Schizoneura lanigera {Hausm.). Aphis lanigera Hausm. 



Hormaphis O. S. 

 Hormaphis hamamelidis {Fitch). Bri/socripda hamamelidis Fitch. 

 Type in U. S. N. M. 



