Wilson-Vickery—List of Aphididae, 
297 
Polygonum pennsylvanicum. 
Anoecia corni Fabricius. 
Aphis maidis Fitch. 
Phorodon galeopsidis Kaltenbach. 
Polygonum persicai*ia. 
Anoecia corni Fabricius. 
Aphis avenae Fabricius. 
Aphis maidi-radicis Forbes. 
Aphis maidis Fitch. 
Aphis rumicis Linnaeus. 
Aphis transiens Walker. 
Macrosiphum cerealis Kaltenbach. 
Macrosiphum dirhoda Walker. 
Macrosiphum polygoni Buckton. 
Phorodon galeopsidis Kaltenbach. 
Rhopalosiphum hippophaes Koch. 
Rhopalosiphum persicae Sulzer. 
Polymnia canadensis. 
Macrosiphum circumflexa Buckton. 
Polypogon monspeliensis. 
Toxoptera graminum Rondani. 
Polystichum sp. 
Amphorophora ampullata Buckton. 
Pontedaria cordata. 
Siphocoryne nymphaeae Linnaeus. 
Populus sp. 
Aphis amenticola Kaltenbach. 
Chaitophorus aWus Mordwilko. 
Longistigma caryae Harris. 
Pemphigus glohulosus Theobald. 
Pemphigus lactucarius Passerini. 
Pemphigus lichtenstemi Tullgren. 
Pemphigus napaeus Buckton. 
Pemphigus spyrothecae infaustus Ferrari. 
Pemphigus varsoviensis Mordwilko. 
Pterocomma populeus longirostris Mordwilko. 
Pterocomma rufulus Davidson. 
Pterocomma steinheili Mordwilko. 
