126 Wisconsin Academy of Sciences^ Arts^ and Letters, 
prolifera, Typha angustifolia, T, latifolia, T. shuttleworthii, 
Verbma chamaedryfolia, Viburnum opulus, Vida pseudo-crac- 
ca, Vinca sp., Viola odorata, V. tricolor, Zea maya, 
persicae-niger, Aphis Smith, 1890. Ent. Amer. VI, p. 101. 
Prunus chicasa, (wild goose plum), Prunus persica. 
persicaecola, Aphis Boisduval, 1867. Essai sar Entom. Hort., 
p. 251. 
Prunus persica. 
perslcarla«, Aphis Hartig, 1841. Zeit. Ent. (Germ-ar) III, p. 370. 
Prunus armeniaca, P. domestica, P. perisca. 
persicariimM Aphis Boisduval, 1867. Essai sur EntOm. Hort., p. 
252. 
Prunus persica. 
persicophlla, Aphis Passerini, 18 60. Gli Afldi, p. 36. 
Prunus persica. 
persola, Aphis Walker, 18 48. The Zool. VI, p. 2246. 
AnagalUs arvensis, Chrysanthemum segetum. 
persorbens, Aphis Walker, 18 49. The-'Zool. VII, p. 37, app. 
Prunus domestiea. 
petasltMls, Aphis Buckton, 18 79. Mon. Brit. Aphides, 11, p. 69, 
fig. 
Cynoglossum offlcinalis, Petasites japonicus, P. niveus. 
phaseoll, Tychea Passerini, 1860. Gli Afidi, p. 39. 
Amaranthus graecizans, A. retroflexus, Brassica oleraeea, Euphor¬ 
bia lathyris, Phaseolus coccineus, P. vulgaris. 
pheidolel, Aphis Theobald, 1916. Entomologists Record, XXVIII, 
p. 37. 
In ant's nest, Pheldol© sp. 
phellpaea©, Aphis Passerini, 1879. Bui. Ent. Soc. Ital., XI, p. 47. 
Orabanche ramosa. 
phenax, Myzus Cockerell, 19 03. Trans. Amer. Ent. Soc. XXIX, p. 
115. 
Humulus lupulus. 
