( 
128 Wisconsin Academy of Sciences, Arts, and Letters. 
picta, Aphis Walker, 1849. The Zool. VII, p. 47, app. 
Sambucus nigra. 
picta, Lachniella Del Guercio, 1909. Redia, V, p. 293, flg. 
Finns sylvestris. 
picta, Phylloxera Pergande, 19 04. Proc. Dav. Acad. Sci., IX, p. 
197. 
Carya alba, C. glabra. 
pictus, Pterocallis Ferrari, 1872. Ann. Mus. Civ. Stor. Nat. Ge¬ 
nova, II, p. 77. 
Ambulaero aequasola. 
ptllcomls, Aphis Hartig, 1841. Zeit. Entom. (Germar) III, p. 3 69. 
Picea abies. 
pilosa, Aphis Haldeman, 1844. Proc. Bos. Soc. Nat. Hist., I, p. 
168. 
Salix sp. 
pUosa, Aphis Walker, 1849. The Zool. VII, p. 54, app. 
Digetalis purpurea. 
pilosa, Aphis Zetterstedt, 1840. Insecta Laponica, I, p. 311. 
Species not recognizable. 
pilosa, Glyphina Buckton, 1883. Mon. Brit. Aphides, IX, p. 16, 
fig. 
Finns sylvestris. 
pilosa, Pterocomma Buckton, 1879. Mon. Brit. Aphides, II, p. 
143, fig. 
Salix cinerea, 8. daphnoides, 8. viminalis. 
pilosellae, Rhizobius Burmeister, 1835. Hand, der Entomologie, 
II, p. 87. 
Hieracium pilosella, Zea mays. 
pilosula, Phylloxera Pergande, 1904. Proc. Dav. Acad. Sci.. IX, 
p. 203. 
Carya glabra. 
pllosus, Myzus Van Der Goot, 1912. Tijdschr. voor Ent., LV, p. 
68 . 
Artemisia vulgaris. 
