228 Maine Agricultural Experiment Station. 1919. 



Aphis nerii Boyer (asclepiadis Fitch). Sanborn, 1904, p. 52. 



Aphis nerii Fonsc. Essig, 1917a, p. 340. 



Aphis papaveris Fab. Kaltenbach, 1874, p. 269. 



Aphis rumicis Linn. Walker, 1850a, p. 19. 



Aphis silybi Passerini. Del Guercio, 1909 (1910), Redia VII, 



p. 297. 

 Cryptosiphum nerii Perez. Wilson, 1918, p. 276. 

 Myzus asclepiadis Pass. Ferrari, 1872, p. 62. 

 Myzus nerii Boyer. Wilson, 1918, p. 276. 

 Rhopalosiphum dianthi (Schrank) Koch (persicae, Puceron du 



pecher Morren) (rapae Curtis) (floris rapae Curtis) (dubia 



Curtis) (vastator Smee) (persicaecola Boisduval). Buckton, 



2, p. 17. 

 Rhopalosiphum persicae Sulzer, Wilson, 1918, p. 276. 

 N. sp. 



Aphis lutescens Monell. Lichtenstein, La Flore. 

 Cryptosiphum nerii Stefani. Schouteden, 1906c. 

 Rhopalosiphum persicae Sulzer, Lichtenstein, Flore Supplement. 



VINCA. Periwinkle. 



V. major L. 



Amphorophora latysiphon Davidson. Davidson, 1912, p. 409. 



Macrosiphum convolvuli Kalt. Wilson, 1918, p. 353. 



Macrosiphum vincae Walker. Wilson, 1918, p. 353. 



Myzus vincae Gillette. Davidson, 1910, p. 380. 



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

 p. 149. 

 V. minor L. Common Periwinkle. "Myrtle." 



Aphis vincae Walker. Kaltenbach, 1874, p. 438. 



Macrosiphum convolvuli Kalt. Theobald, 1913, p. 55. 



Macrosiphum vincae Walker. Wilson, 1918, p. 353. 

 V. sp. 



Macrosiphum circumfiexa Buckton. Wilson, 1918, p. 353. 



Mysus circumflexus Buckton. Swain, 1919a, p. 176. 



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



Myzus vincae Gillette. Gillette, 1908b, p. 19. 



Rhopalosiphum persicae Sulzer. Wilson, 1918, p. 353. 



ASCLEPIADACEAE. MILKWEED FAMILY. 

 ACERATES. Green Milkweed. 



A. angustifolia Nutt. See Asclepias stenophylla Gray. 

 A. floridana (Lam.) Hitche. (longifolia). 



Aphis asclepiadis Fitch. Williams, 1891, p. 17. 



