74 Maine Agricultural Experiment Station. 1918. 



Pemphigus betae Doane. Parker, 1914, p. 137. Jour. Ec. Ent, 



Vol. 7. 



OXALIDACEAE. WOOD SORREL FAMILY. 

 OXALIS. Wood Sorrel. 



O. corniculata L. Lady's Sorrel. 



Aphis oxalis Macchiati. Macchiati, 1883, p. 256. 

 O. stricta L. 



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

 O. sp. 



Aphis maidis Fitch. Davis, 1909b, p. 145. 



Rhopalosiphum dianthi (Schrank). Williams, 1891, p. 19. 



GERANIACEAE. GERANIUM FAMILY. 



ERODIUM. Storksbill. 

 E. Botrys Bert. 



Siphonophora malvae Mosley. (A. pelargonii Kalt.) (A. pallida 

 Walker) (S. pelargonii Koch) (S. diplantherae Koch). Mac- 

 chiati, 1883, p. 230. 

 E. cicutarium L'Herit. ex Ait. 



Aphis rumicis Linn. Walker, 1850a, p. 19. 



GERANIUM. Cranesbill. 



G. maculatum L. Wild Cranesbill. 



Nectarophora geranii Oestlund. Oestlund, 1887, p. 81. 

 G. molle L. 



Aphis geranii Kalt. Kaltenbach, 1874, pp. 81-82. 

 Siphonophora malvae (Mosley) Pass. (A. pelargonii Kalt.) (A. 

 pallida Walker) (S. pelargonii Koch) (S. diplantherae Koch). 

 Passerini, 1863, p. 14. 

 G. pusillum Burm. 



Aphis geranii Kalt. Kaltenbach, 1874, p. 81. 

 G. Robertianum L. Herb Robert. 



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

 Aphis urticae Schrank. Kaltenbach, 1874, p. 81. 

 Siphonophora pelargonii Kalt. Koch, pp. 193, 194. 

 Siphonophora urticae (Kalt.). Koch. Buckton, 1, p. 144. 

 G. sp. 



Siphonophora circumflexa Buckton. Theobald, 1911, p. 17. 

 Siphonophora pelargonii (Kalt.) Koch, (pallida Walker) (fra- 

 garia Walker?) (diplanterae Koch?) (malvae Pass.) Buck- 

 ton, 1, p. 137. 



PELARGONIUM. 

 P. sp. 



Aphis extranca Walker. Walker, 1849c, p. 2251. 



