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. 

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

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

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

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



ECHINOSPERMUM. 



E. lappula. 



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

 Macrosiphum jaccac 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 nymph ; suffragans, the alate female ; also, conjuncta 



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

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

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



HELIOTROPIUM. Turnsole. 



H. europaeum L. 



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



Macrosiph%im 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 dianihi Schrank. Walker, 1850a, p. 394. 



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



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



LITHOSPERMUM. 



L. arvense. 



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

 L. fruticosum. 



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



