2/8 MAINE AGRICULTURAL EXPERIMENT STATION. I913. 



Chaitophorns hetulinus van der Goot. Van der Goot. 1912, p. 278. 

 Glyphina alni Schrank ■ (betulae Kaltenbach) (betulina Buckton). 



Schouteden, 1906a, p. 192. 

 Hamamelistes spinosus Shimer (Hormaphis papyraceae Oestlund) 



Oestlund, 1887, p. 20. 

 Symdobins oblongus (Heyden). Patch, 1910b, p. 245. 

 Syindobius oblongus Heyden. Schouteden, 1906a, p. 210. 

 Vaciina betulae Kalt. Kaltenbach, 1843, p. 177. 

 B. alpestris Fries. 



Hainaiiielistes betulae Mordw. Tullgren, 1909, p. 58. 

 B. fontinalis. 



Calaphis betulaecolens (Fitch). Gillette, 1910, p. 371. 

 Euceraphis betulae (Koch). Gillette, 1910, p. 371. 

 Hamamelistes spinosus Shimer. Gillette, 1909a, p. 353. 

 B. nigra L. River or Red Birch. 



Calaphis betulella Walsh. Walsh, 1862, p. 302. 



Hormaphis (Brysocrypta) hamamelidis Fitch (Hamamelistes 



cornu Shimer). Pergande, 1901, p. 8. 

 B. tremula. 



CalUpterus carpini Koch. (A. coryli Kalt?). Buckton, 3, p. 19. 

 B. sp. 



Aphis antennata Kalt. Kaltenbach, 1874, p. 610. 



Aphis betulae Linn. Kaltenbach, 1874, p. 609. Tullgren, 1909, p. 4. 



Aphis (CalUpterus) betulae Koch. Kaltenbach, 1874, p. 610. 



Aphis betulicola Kalt. Kaltenbach, 1874, p. 609. 



Aphis betulina Walker. Walker, 1852, p. 1039. Host plant not 



given. 

 Aphis CalUpterus Hartig. Hartig, 1841, p. 369. 

 Aphis comes Walker. Kaltenbach, 1874, p. 610. 

 Aphis impingens Walker. Kaltenbach, 187J, p. 610. 

 Aphis inhaerens Walker. Walker, 1852, p. 1041. 

 Aphis nigritarsis Heyden. Kaltenbach, 1874, p. 609. 

 Aphis quadrituberculata Kalt. Kaltenbach, 1874, p. 609. 



Bradyaphis antennata . Mordwilko 1899, p. 407. 



Callipteroides betulae (nigritarsis). Mordwilko, 1899, p. 407. 

 CalUpterus betularius Kalt. (A. tuberculata Heyden?) (A. 



antennata Kalt?) (betulae Walker). Buckton, 3, p. 14. 

 CalUpterus tuberculata Heyden. Lichtenstein, La Flore. 

 Chaitophorus annulatus Koch. Koch, p. 8. 

 Chaitophorus betulae Buckton. Buckton, 2, p. 140. 

 Chaitophorus tricolor Koch. Koch, p. 10 (A. betularia?). 

 ?Eriosoma imbricator Fitch. "An insect closely allied to E. im- 



bricator abundant on birch in Maryland in October." Glover, 



1877, P- 39- 

 Eriosoma tessellata Fitch. Glover, 1877, p. 39. 

 Glyphina betulae Kalt. Tullgren, 1909, p. 48. 

 Glyphina betulae Heyden ('Vacuna alni Pass.?) (Tremulinax 



Amyot). Buckton, 4, p. 18. 



