48 Maine Agricultural Experiment Station. 1918. 



COTONEASTER. 



C. franchetii Bois. 



Aphis pomi DeGeer. Essig, 1917a, p. 341. 

 C. vulgaris. 



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

 canthae Schrank non Koch) (padi Sanderson non Linnaeus) 

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

 C. sp. 



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

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



CRATAEGUS. Hawthorn. 



C. Azarolus L. 



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

 Prociphilus corrugatans (Sirrine). Quaintance & Baker, 1917, p. 

 19. 

 C. coccinea L. 



Aphis crataegifoliae Fitch. Monell, 1879, p. 21. 



Aphis (Adactynus) crataegns-coccinea Rafinesque. Rafinesque, 



1818. 

 Siphocorync avcnae (Fab.) (mali Fitch) (avenae Fitch) (pruni- 

 foHae Fitch) (annuae Oestlund) (fitchii Sanderson) (Siphono- 

 phora avenae Thos. in part), Pergande, 1904a, p. 8. 

 Siphonophora crataegi Monell. Monell, 1879, p. 21. 

 C. crusgalli (lucida). 



Aphis mali Fab. (A. pomi DeGeer) (A. oxyacanthae Schrank), 



Passerini, 1863, p. 40. 

 Eriosoma lanigera (Hausmann) (Schizoneura crataegi Oestlund), 



Becker 1918a, p. 255. 

 Pemphigus corrugatans Sirrine. Gillette, 1909a, p. 355. 

 C. macrocapetra. 



Pemphigus corrugatans Sirrine. Gillette, 1909a, p. 355. 

 C. monogyna. 



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. 

 C. occidentalis. 



Pemphigus corrugatans Sirrine. Gillette, 1909a, p. 355. 

 C. oxyacantha L. English Hawthorn. 



Aphis crataegi Kalt. Buckton, 2, p. 2)7. 



Aphis crataegi Kalt. (pyri Koch), Ferrari, 1872, p. 62. 



Aphis crataegi Kalt. (non Koch) (non Buckton), Theobald, 1911- 



1912. 

 Aphis crataegi Koch. Koch, p. 64. 

 Aphis crataegiella Theobald, (crataegi Buckton non Kaltenbach), 



Theobald, 1911-1912. 

 Aphis crataegifoliae Fitch. Davidson, 1910, p. 2)77. 



