296 Wisconsin Academy of Sciences, Arts, and Letters. 
Polygonum sp. 
Amycla alMcornis Koch. 
Macrosiphiim granarium Kirby. 
ScMzoneura panicola Thomas. 
Siphocoryne nymphaeae Linnaeus. 
Polygonum aviculare. 
Anoecia corni Fabricius. 
Aphis polygoni Macchiati. 
Aphis polygoni Walker. 
Pemphigus hetae Doane. 
Phorodon galeopsidis Kaltenbach. 
Sipha polygoni Schouteden. 
Polygonum cristatum. 
Macrosiphum venaefuscae Davis. 
Polygonum “donii”. 
Phorodon galeopsidis Kaltenbach. 
Polygonum fagopyrum=Pagopyrum sp. 
Aphis polygoni Van Der Goot. 
Aphis rumicis Linnaeus. 
Phorodon galeopsidis Kaltenbach. 
Polygonum hydropiper. 
Phorodon galeopsidis Kaltenbach. 
Polygonum hydropiperoides. 
Aphis maidi-radicis Forbes. 
Phorodon galeopsidis Kaltenbach. 
Polygonum incarnatum. 
Aphis maidi-radicis Forbes. 
Polygonum lapthifolium. 
Aphis maidi-radicis Forbes. 
Phorodon galeopsidis Kaltenbach. 
Polygonum mite. 
Phorodon galeopsidis Kaltenbach. 
Polygonum muhlenbergii. 
Aphis maidi-radicis Forbes. 
Polygonum nodosum. 
Aphis polygoni Van Der Goot. 
Rhopalosiphum hippophaes Koch. 
