56 Maine Agricultural Experiment Station. 1918. 



Aphis pomi DeGeer. (mali Fab.) (aucupariae Buckton) (crataegi 

 Buckton). van der Goot, 1915, p. 213. 



Aphis pomi DeGeer. (mali Fabricius non Oestlund etc.) (oxya- 

 canthae Schrank non Koch) (padi Sanderson non Linnaeus) 

 (pyri Kittel non Boyer, Koch). Theobald, 1916a, p. 176. 



Aphis sorhi Kalt. Kaltenbach, 1874, p. 216. 



Siphocoryne padi L. (A. avenae Fab.) van der Goot, 1915, p. 244. 



P. communis L. (pyraster). Pear. 



Aphanostigma (Phylloxera) piri (Choi.) C. B. Borner, 1909b, p. 

 61. Cholodkovsky, 1910, p. 149. 



Aphis crataegi Kalt. (pyri Koch). Passerini, 1863, p. 35. 



Aphis crataegi Kaltenbach non Buckton. Theobald, 1916, p. 212. 



Aphis gossypii Glover, (citrifolii Ashmead in part) (citrulli Ash- 

 mead) (cucumeris Forbes) (forbesi Weed?) Pergande, 1895, 

 p. 314. 



Aphis kochii Schouteden (pyri Koch non Boyer) (sorbi Walker, 

 Sanderson etc. non Kaltenbach) (mali Buckton part, non Fab- 

 ricus) (pyri-mali Fabricius part) (malifoliae Fitch and Thomas) 

 (mali Ferrari part) (pyri Gillette and Taylor). Theobald, 1916b, 

 p. 205. 



Aphis lentiginis Buckton. Buckton, 2, p. 60. 



Aphis mali Fab. (Puceron du pomier Gotze) (pomi DeGeer). 

 Buckton, 2, p. 46. 



Aphis oxyacanthae Koch non Schrank. Bayer, 1909b, p. 35. 



Aphis pyri Koch. Bayer, 1909b, p. 35. 



Aphis pomi DeGeer. (mali Fab.) (aucupariae Buckton) (cratae- 

 gi Buckton). van der Goot, 1915, p. 210. 



Aphis pomi DeGeer. (mali Fabricius) (pyri Kittel non Boyer, 

 Koch) (padi Sanderson non Linnaeus) (oxyacanthae Schrank). 

 Theobald, 1916a, p. 176. 



Aphis pyraria Pass. Buckton, 2, p. 54. 



Aphis pyrastri Boisduval. Passerini Flora. 



Aphis pyri Goureau. Passerini Flora. 



Aphis rumicis L. (evonymi Fab.) (papaveris Fab.) (atriplicis Fab.) 

 (genistae Scopoli). van der Goot, 1915, p. 225. 



Eriosoma lanuginosa Hartig. (pyri Goethe) Baker and Davidson, 

 1917c, p. 66. 



Eriosoma pyricola Baker and Davidson. Baker and Davidson, 

 1916e, p. 351. 



Lachnus pyri Buckton. Buckton, 1899a, p. 274. 



Myzoxylus laniger (Hausmann). Bayer, 1909b, p. 34. 



Myzus oxyacanthae (Koch) Pass. Passerini, 1863, p. 24. 



Myzus persicae Sulzer. Gillette and Taylor, 1908, p. 36. 



Myzus pyrarius Pass. Passerini, 1862, p. 2. 



Myzus pyrinus Ferrari. Zoological Record, 1872, p. 418. 



Nectarophora tabaci Pergande. Pergande, 1898, p. 300. 



Prociphilus corrugatans Sirrine. Quaintance and Baker, 1917, p. 

 19. 



