82 Maine Agricultural Experiment Station. 1918. 



Chaitophorus lyropictus Kessler. Mordwilko, 1899, p. 414. 

 Chaitophorus testudinatus (Thorn.). Oestlund,- 1908, p. 131. 

 Chaitophorus versicolor^ Koch. Theobald, 1911-12. 

 Drepanosiphum platanoides Schrank. Wilson, 1909b, p. 349. 

 Euc era phis betulae (Koch). (Aphis cerasicolens Fitch?). Baker, 



1917f, p. 425. 

 Pemphigus aceris M.onell. Jackson, 1908, p. 214. 

 Periphyllus tcstudo van der Hoeven. Zoological 'Record, 1870, p. 



472. 

 Stomaphis graffii Choi/ Cholodkovsky, 1894 (1895), p. 405. "Auf 



ahornwurzeln." 



RULAC. 

 R. negundo. See Acer negundo L. 



SAPINDACEAE. SOAPBERRY FAMILY. 



AESCULUS. Horse-chestnut. 



A. glabra Willd. Fetid or Ohio Buckeye. 



Drepanaphis monelli (Davis). Gillette, 1910, p. 371. 



Phymatosiphum monelli Davis. Davis, 1909c, p. 197. 

 A. parviflora Walt. 



Chaitophorus aceris (Linn.) Koch. Buckton, 2, p. 126. 



MELIANTHUS. 



M. major (L). 



Rhopalosiphum persicae (Sulzer). Essig, 1917a, p. 332. 



BALSAMINACEAE. TOUCH-ME-NOT FAMILY. 



IMPATIENS. Balsam. 



I. biflora Walt, (fulva). Spotted Touch-me-not. 



Aphis impatientis Thomas. Thomas, 1879, p. 98. 



Nectarophora fulvae Oestlund. Oestlund, 1887, p. 80. 



Siphonophora carnosa var. impatientis Williams. William's, 1910 

 (1911), p. 74. 

 I. noli-tangere L. 



Aphis balsamines Kalt. Kaltenbach, 1874, p. 84. 

 I. pallida Nutt. (aurea Muhl.) Pale Touch-me-not. 



Aphis impatientis Thomas. Williams, 1891. p. 25. 



Siphonophora carnosa var. impatientis Williams. Williams, 1910 

 (1911), p. 74. 



Siphonophora fulvae Oestlund. Williams, 1891, p. 25. 



