200 MAINE AGRICUI,TURAIv E;xrE;RIME;NT STATION. I912. 



P. sp. 



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



Colopha ulmicola (Fitch) (eragrostidis Middleton). Patch, 1910a, 

 p. 205. 



Pemphigus {Aniycla) fuscifrons Koch (boyf ri Pass.) (zeae maidis 



Low?) (A. radicum Boyer?) 

 Buckton, 3, p. 116. 



Schisoneura pan! cola Thos. Hart, 1891 and 1892, p. 87. 



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



Siphonophora panicola Thomas. Thomas, 1878, p. 6. 



Trama crigeronensis Thos. (Tychea radicola Oestlund). Hart, 1891' 

 and 1892, p. 93. 



Tychea panici Thomas. Thomas, 1879, p. 138. 



PH ALAR IS. Canary Grass. 



P. arundinacea L. Reed Canary Grass. 



Aphis glyceriae Kalt. Kaltenbach, 1874, p. 751. 



Aphis lonicerae Sieb. Kalteribach, 1874, p. 406. 

 P. canariensis L. 



Siphonophora avenae Fab. Williams, 1891, p. 13. 



PHLEUM. 



P. pratense L. Timothy, Herd's Grass. 



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



Siphocoryne avenae (Fab.) (mali Fitch) (prunifoliae Fitch) (avenae 

 Fitch) (annuae Oestl.) (fitchii Sanderson) 

 (Siphonophora avenae Thos. in part). Per- 

 gande, 1904a, p. 8. 



PHRAGMITES. Reed. 



P. communis L. Trin. (Phragmites Phragmites) (Arundo phragmites). 



■Hyalopterus arundinis (Fab.) Koch (A. phragmitidicola Oestl.) Oest- 

 lund, 1887, p. 48. 



Hyalopterus arundinis (Fab.) (pruni Fab.) Osborn-Sirrine, 1893, P- 

 236. 



Hyalopterus arundinis (Fab.) Koch (A. calaraaphis Amyot). Buckton, 

 2, p. 112. 



PHYLLOSTACHYS. 



P. sp. 



Aphis bambusae Fullaway "on bamboo (Phyllostachys?)." Fullaway, 

 1909, p. 36. 



POA. Meadow Grass. 

 P. annua L. Low Spear Grass. 

 Aphis annuae Oestlund. Oestlund, 1887, p. 66. 

 Aphis glyceria Kalt. Kaltenbach, 1874, p. 751. 

 Aphis padi Kalt. (A. avenae Fab., Kalt.). Mordwilko, 1897, p. 282. 



