2IO MAINE AGRICUI^TURAI, e:xPE;riME;nT STATION. I912. 



SEMELE. 



S. androgyna Kunth. (Ruscus androgynus). 

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



SMI LAX. Green Brier. 



S. herbacea L. Carrion flower. 



Pemphigus attenuatus Osborn (Lachnus smilacis Williams.) Wil- 

 liams, 1910, p. 25. 

 S. rotundifolia L,. Common Green Brier. Horse Brier. 



Neoprociphilus attenuatus (Osborn & Sirrine). Patch, 1912c. 



TULIPA. 

 T, Gesneriana L. 



Rhopalosiphum dianthi (Schrank). Williams, 1891, p. 25. 

 Rhopalosiphum tulipae Thomas. Thomas, 1879, p. 80. 

 Siphonophora tulipae Monell. Williams, 1891, p. 25. 

 T. sp. 

 Aphis tulipae Boyer. Lichtenstein, La Flore. 

 Macrosiphum tulipae Monell. Davidson, 1910, p. 380. 

 Mysus persicae (Sulzer). Gillette and Taylor, 1908, p. 35. 

 Rhopalosiphum dianthi (Schrank) Koch (persicae, Puceron du 



pecher Morren) (rapae Curtis) (A. 



floris rapae Curtis) (duhia? Curtis) 



(persicaecola Boisduval) (Rh. persicae 



Pass.). Buckton, 2, p. 17. 

 Rhopalosiphum persicae (Sulzer) Pass. (A. dianthi Schrank) (A. 



vulgaris Kyber) (A. rapae Curtis) (A. 



dubia Curt.) (A. vastator Smee). 



Passerini, 1863, p. 20. 



VERATRUM. False Hellebore. 

 V. album L. 



A'phis veratri Walker. Walker, 1852, p. 1041. 

 V. Californicum Durand. 



Aphis z'eratri Cowen. Cowen, 1895, p. 122. 

 V. sp. 



Aphis veratri Cowen. Cockerell, 1903b, p. 114. 



Aphis veratri Walker. Kaltenbach, 1874, p. 719. 



YUCCA. Bear Grass. 



Y. glauca Nutt. (angustifolia). 



Aphis yuccae Cowen (yuccicola Williams?). Cowen, 1895, p. 122. 



Aphis yuccicola Williams. . Williams, 1910 (191 1), p. 62. 

 Y. sp. 



Aphis yuccae Licht. (ined.). TJchtenstein, La Flore. 

 Mysus roseum Macchiati. Lichtenstein, Flore Supplement. 

 Mysus rubrum Macchiati. Del Guercio, 1900, p. 151. Macchiati, 1883, 

 p. 236. 



