234 Maine Agricultural Experiment Station. 1919. 



C. sp. 



Aphis cynoglossi Licht. (ined.) Lichtenstein, La Flore. 



Aphis rumicis Linn. Wilson, 1918, p. 229. 



Aphis tuberosae Boyer. Wilson, 1918, p. 229. 



Cerataphis lataniae Boisduval (brasiliensis Hempel) (orchidearum 



Westwood). Schouteden, 1906a, p. 197. 

 Myzocallis cyperis Macchiati. Wilson, 1918, p. 229. 

 Phorodon cynoglossi Willliams. Williams, 1910 (1911), p. 89. 

 Rhopalosiphum dianthi Schrank. Davidson, 1910, p. 378. 

 Rhopalosiphum persicae Sulzer. Swain, 1919a, p. 164. 



ECHINOSPERMUM. 



E. lappula. 



Aphis lappula Schrank. Wilson, 1918, p. 235. 

 Macrosiphum jaceac Linn. Wilson, 1918, p. 235. 



ECHIUM. Viper's Bugloss. 



E. vulgare L. Blue-weed. Blue Devil. 



Aphis familiaris Walker (adjuvans) (adscita). Theobald, 1917a, 

 p. 3. 



Aphis lycopsidis (including consueta, the oviparous female; ad- 

 justa, the n3^mph ; suffragans, the alate female ; also, conjuncta 

 and hasalis). Theobald, 1917a, p. 3. 



Aphis symphiti Schrank. Passerini, 1863, p. 40. 



Macrosiphum jaceae Linn. Wilson, 1918, p. 235. 



HELIOTROPIUM. Turnsole. 



H. europaeum L. 



Aphis hcliotropii Macchiati. Schouteden, 1906a, p. 221. 



Macrosiphum solani Kalt. Wilson, 1918, p. 251. 

 H. indicum Linn. 



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

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

 Goot, 1916b, p. 93. 

 H. peruvianum L. 



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



Rhopalosiphum persicae Sulzer. Wilson, 1918, p. 251. 



Rhopalosiphum staphylcae Koch. Wilson, 1918, p. 251. 



LITHOSPERMUM. 



L. arvense. 



Macrosiphum jaceae Linn. Wilson, 1918, p. 266. 

 L. fruticosum. 



Macrosiphum jaceae Linn. Wilson, 1918, p. 266. 



