Aphid Food Plant Catalogue. 51 



Siphonophora ulmariae (Schrank) (onobrychis Boyer) (pisi Kalt.) 

 (gei Koch). Ferrari, 1872, p. 55. 



MESPILUS. 



M. germanica. 



Aphis pomi DeGeer. Lingelsheim, 1916a. 

 Aphis fitchii Sanderson. Lingelsheim, 1916a. 



NUTTALLIA. (Osmaronia). 



N. cerasiformis Torr-Gray. 



Illinoia osmaroniae Wilson. Wilson, 1912a, p. 153. 



PHOTINIA. 



P. arbutifolia Lindl. 



Rhopalosiphum nervatum Gillette (arbuti Davidson). Essig, 1917, 

 p. 330. 

 P. serrulata Lindl. (Crataegus glabra). 



Myzus cerasi Fab. Macchiati, 1883, p. 234. 



PHYSOCARPUS. (Neillia) (Opulaster). Nine-bark. 



P. opulifolius (L). Maxim. (Neillia opulifolius). 



Aphis neilliae Oestlund. Oestlund, 1887, p. 59. 



POTENTILLA. (Tormentilla). Cinquefoil. 



P. Anserina L. Silver Weed. 



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



Macrosiphum potentillae (Aphis Walker). Theobald, 1913, p. 150. 



Myzus rosarum (Walker) (potentillae Oestlund). Oestlund, 1887, 



p. 7Z. 

 Nectarophora potentillae Oestlund. Oestlund, 1887, p. 83. 

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

 ni, 1863, p. 19. 

 P. arguta Pursh. 



Myzus potentillae Williams. Williams, 1910 (1911), p. 66. 

 P. hippiana Lehm. (pulcherrima). 



Nectarophora martini Cockerell. Cockerell, 1903a, p. 171. (pul- 

 cherrima?). 

 P. reptans L. 



Phorodon galeopsidis Kalt. Macchiati, 1883, p. 232. 

 P. tormentilla Scop. 



Aphis tormentillae Pass. Del Guercio, 1909, (1910), Redia VII, 

 p. 297. 



PRUNUS. (Amygdalus) (Cerasus) (Padus) (Persica). Plum. Cherry. 



P. americana Marsh. Wild Plum. 



Aphis cerasi Schrank. (A. prunicola Kalt.) Lingelsheim, 1916a. 

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



