232 Maine Agricultural Experiment Station. 1919. 



Macrosiphum ludovic'ianae Oestlund. Swain, 1919a, p. 164. 

 Myzus persicae Sulzer. Gillette and Taylor, 1908, p. Z6. 



IPOMOEA. 



I. Batatas Lam. 



Macrosiphum soJanifoln (Ashmead). Houser, 1917a, p. 69. 

 I. crispa. 



Myzus persicae (Sulzer). Das, 1918a, p. 168. 

 I. guttata. 



Aphis malvae Koch or A. malvoides Das. Das, 1918a, p. 271. 



Myzus persicae (Sulzer). Das, 1918a, p. 168. 

 I. hederacea Jacq. 



Rhopalosiphum magnoliae Essig and Kuwana. Essig and Kuwana, 

 1918a, p. 39. 

 I. mexicana. 



Aphis malvae Koch or A. malvoides Das. Das, 1918a, p. 271. 



Myzus persicae (Sulzer). Das, 1918a, p. 168. 

 I. palmata. 



Aphis malvae Koch or A. malvoides Das. Das, 1918a, p. 271. 

 I. purpurea. 



Macrosiphum convolvuli Kalt. Wilson, 1918, p. 257. 



Macrosiphum solanifolii Ashmead. Smith, 1919a, p. 50. 

 I. sp. 



Aphis gossypii Glover (malvae Koch) (cucurbiti Buckt.) (citri- 

 folii Ashm.) (citrulli Ashm.) . (cucumeris Forbes), van der 

 Goot, 1916b, p. 93. 



Aphis minuta Wilson. Wilson, 1918, p. 257. On "Aero Potato." 



Rhopalosiphum persicae Sulzer. Matsumura, 1917a, p. 362. 



HYDROPHYLLACEAE. WATERLEAF FAMILY. 



NEMOPHILA. 



N. sp. 



Siphonophora convolvuli Kalt. (A. vincae Walker). Buckton, 1, 

 p. 149. 



BORAGINACEAE. BORAGE FAMILY. 



AMSINCKIA. 



A. intermedia Fisch. Buckthorn weed. 



Aphis scnecio Swain. Swain, 1918a, p. 17. 

 A. spectabilis Fand. M. 



Aphis scnecio Swain. Swain, 1918a, p. 17. 



Myzus persicae Sulzer. Essig, 1911c, p. 600. 



