THE CANADIAN ENTOMOLOGIST 171 



Aphis sorbi Walker (part), Sanderson, Theobald, etc., (non 

 Kaltenbach). 



Myzus mali Ferrari (part). 

 * A phis malifolicB Fitch. 



3. Aphis crataegi Kaltenbach (non Buckton). 



4. Aphis nigra, nov. nom. 



Aphis oxyacanthce Koch (non Schrank). 



5. Aphis rumicis Linnaeus. 



Aphis papaveris Fabricius. 

 Aphis thlaspeos Schrank. 

 Aphis f aha Scopoli. 

 Aphis atriplicis Fabricius. 

 Aphis aparines Schrank. 

 Aphis armata Haussman. 

 Aphis dahlicr Mosley. 

 Aphis atriplicis Buckton. 

 Aphis evonymi Fabricius. 

 Aphis iilicis Fabricius. 

 Riimicifex Amyot. 

 Meconaphis Amyot. 



6. Siphocoryne avenae Fabricius. 



Aphis avencB Fabricius. 



Aphis avencE sativce Schrank. 



Aphis annu(B Oestlund. 



Aphis mali Fitch (non Fabricius). 



Aphis fitchii Sanderson. 



Aphis cratcegifolicB Fitch. f 



7. Phorodon humuli Schrank-Koch. 



Aphis humuli Schrank. 

 Aphis prnni Scopoli. 



*Schonteden places this as a synonym of De Geer's Aphis pomi. It is cerlainly 



not JO. 

 fSchonteden give? Fitch's Aphis pninlfolice as a synonym. It is not, for this i,- 



clearly only Aphis prvni. 



