FOOD PI,ANTS OF THE APHIDS. 203 



Schisoneura venusta Pass. Ferrari, 1872, p. 82. 

 Tychea setariae Pass. Passerini, i860, p. 40. 

 S. sp. 

 Tetraneura rubra Licht. ("nach Mordwilko identisch mit Pemphigus 

 Zeae-maydis Boyer"). Cholodkovsky, 1910, p. 149. 



SORGHUM. 



S. Dora Griseb. 

 Aphis maidi-radicis Forbes. Davis, 1909b, p. 124. 

 Aphis maidis Fitch. Davis, 1909b, p. 145. 

 Sipha (Chaitophorus) flava Forbes. Davis, 1909b, p. 157. 

 S. halepense L. (glycychylum). Johnson Grass. 

 Aphis aveiiae Fab. Passerini, 1863, p. 35. 

 Pemphigus boyeri Pass. (A. radicum Boyer) (x'\mycla fuscifrons 



Koch). Passerini, 1863, p. 74. 

 Sipha maydis Pass. Passerini, i860, p. 38. 



Tetraneura uliiii De Geer (Pemphigus fuscifrons Buckton) (P. sac- 

 charata Del Guercio). Del Guercio, 1900, p. 93. 

 S= saccharatum. 

 Aphis avenae Fab. Passerini, 1863, p. 35. 

 Aphis maidi-radicis Forbes. Davis, 1909b, p. 124. 

 Aphis maidis Fitch. Davis, 1909b, p. 145. 

 Pemphigus boyeri Pass. (A. radicum Boyer) (Amycla fuscifrons 



Koch). Passerini, 1863, p. 74. 

 Sipha (Chaitophorus) flava Forbes. Davis, 1909b, p. 157. 

 Sipha maydis Pass. Passerini, i860, p. 38. 



Siphonophora caianensis Del Guercio. Del Guercio, 1900, p. 167. 

 Tetraneura ulmi De Geer (Pemphigus fuscifrons Buckton) (P. sac- 

 charata Del Guercio). Del Guercio, 1900, p. 93. 

 Si vulgare Pers. Broom Corn. 

 Aphis avenae Fab. Passerini, 1863, p. 35. 

 Pemphigus boyeri Pass. (A. radicum Boyer) (Amycla fuscifrons 



Koch). Passerini, 1863, p. 74. 

 Tetraneura ulmi De Geer (Pemphigus fuscifrons Buckton) (P. sac- 

 charata Del Guercio). Del Guercio, 1900, p. 93. 

 S. sp. 



Aphis sorghella Schouteden. Zoological Record, 1906, p. 423. 

 Aphis sorghi Theobald. Zoological Record, 1904, p. S37- 

 Pemphigus fuscifrons (Koch) (P. boyeri Pass.) (zeae maidis Low?) 



(A. radicum Boyer?). Buckton, 3, p. 116. 

 Schisoneura panicola Thomas. Hart, 1891 and 1892, p. 87. 

 Toxoptera graminum Rondani. Buckton, 3, p. 135. 



SPARTINA. Cord Grass. 



S. cynosuroides Willd. Salt Reed Grass. 

 Schisoneura corni Fab. S. venusta Pass.) (E. fungicola Walsh) 

 (panicola Thomas). Hunter, 1901, p. 81. 

 S. patens (Ait.) (juncea Willd). 



