265 MAINE AGRICULTURAL EXPERIMENT STATION. I913. 



Pcniphigtis betae Doane. Jackson, 1908, p. 218. 



Phorodon galeopsidis Kaltenbach. Theobald, 1911-12. 



Schisoneiira corni (Fab.) (S. venusta Pass.) (E. fungicola 

 Walsh) (E. cornicola Walsh) (S. panicola Thomas). Hunter, 

 1901, p. 81. 



Sipha polygon! Schouteden. Schouteden, 1907, p. 265. 

 P. Hydropiper L. Common Smartweed or Water Pepper. 



Phorodon galeopsidis Kalt. (Aphis). Ferrari, 1872, p. 60. 

 P. hydropiperoides Michx. Mild Water Pepper. 



Aphis niaidiradicis Forbes. Vickery, 1910, p. 103. 

 P. incarnatum Ell. 



Aphis niaidi-radicis Forbes. Davis, 1909b, p. 124. 

 P. lapathifolium L. 



Aphis galeopsidis Kalt. Kaltenbach, 1874, p. 484. 

 P. laxiflorum. 



Aphis galeopsidis Kalt. Kaltenbach, 1874, p. 484. 

 P. mite Schrank (dubium). 



Phorodon galeopsidis (Kalt.) Pass. (Walker ex parte). Pas- 

 serini, 1863, p. ig. 

 P. Muhlenberg! i S. Wats. 



Aphis niaidiradicis Forbes. Vickery, 1910, p. 103. 

 P. pennsylvanicum L. 



Aphis sp. Williams, 1891, p. 16. 



Schizoneura corm (Fab.) Williams, 1910, p. 19. 

 P. persicaria L. Lady's Thumb. 



Aphis dianthi Schrank. Walker, 1850a, p. 394. 



Aphis maidi-radicis Forbes. Davis, igcgb, p. 124. 



Apliis niaidi-radicis Forbes. Vickery, 1910, p. 104. 



Aphis maidis Fitch. Williams, 1891, p. 16. 



Aphis rumicis Linn. (fabae Kirby) (genistae Scop.) (ulicis 

 Fab?) (euphorbiae Kalt.?) (dahliae Mosley) (Cinara rumicis 

 Mosley) (Rumicifex Amyot) (Genistifex Amyot). Buckton, 

 2, p. 84. 



Aphis iransiens Walker. Walker, 1849c, p. 44. 



Phorodon galeopsidis (Kalt.) Pass. Buckton, i, p. 173. 



Schizoneura corni (Fab.) Williams, 1910, p. 19. 



Siphonophora cerealis Koch (Aphis cerealis Kalt.) (A. avenae 

 Walker non Schrank). Passerini, 1863, p. 11. 



Siphonophora dirhoda Walker. Buckton. i, p. 133. 



Siphonophora granaria Kirby (avenae Fab?) (hordei Kyber) 

 (cerealis Kalt.) (Bromaphis x'Vmyot) Buckton, i, p. 116. 



Siphonophora polygoni Buckton. Buckton, i, p. 123. 



Siphonophora polygoni (Walker). Thomas, 1879, p. 62. 

 P. sp. 



Ainycla albicornis Koch. Koch, p. 305. 



Aphis polygoni Licht. Lichtenstein, Flore Supplement. 



Schizoneura panicola Thos. Hart, 1891 and 1892, p. 87. 



