Wilson-Vickery—List of Aphididae. 
141 
pjTiformis, Pemphigus Lichtenstein, 188 6. Mon. Peup. p. 29. 
Listed in La Flore des Aphidens, 1884. 
Popiilus nigra, P. pyramidalis. 
pjTinus, Myzus Ferrari, 1872. Ann. Mus. Civ. Stor. Nat. Genova, 
III, p. 222. 
Pyrus communis. 
quadrituherculata, “Aphis Kaltenbach, 1843. Mon. der Pfianzen- 
lause, p. 134. 
Betula aWa. 
quaerens, Aphis Walker, 1849. The Zool. VII, p. 48 app. 
Galeopsis ladanum. 
quercea, Myzocallis (Kaltenbach), 1843. Mon. der Pflenzenlause, 
p. 13 6. Aphis. 
Quercus rohur. 
querceti, Phylloxera Pergande, 1904. Proc. Dav. Acad. Sci., IX, 
p. 263. 
Quercus aWa, Q. dentata, Q. farnetto, Q. macrdcarpa. 
querci, Fhyllaphis Fitch, 1859. Fifth Kept. Nox. & Ben. Insects 
N. Y., p. 804. Eriosoma. 
Quercus agrifolia, Q. macrocarpa, Q. undulata. 
quercicola, Callipterus? Monell, 1879. Bui. U. S. Geol. & Geog. 
Surv. Terr. V, No. 1, p. 31. 
Quercus sp. 
quercicola, Chaitophorus (Monell), 1879. Bui. U. S. Geol. & Geog. 
Surv. Terr. V, No. 1, p. 3 2. 
Quercus alba, Q. macrocarpa, Q. obtusiloba, Q. prinus. 
quercicbla, Phyllaphis Baker, 1916. Entomological News, XXVII, 
p. 362. 
A new name for Phyllaphis querci (Fitch) Davis. 
Quercus sp. 
quercicola, Thalaxes Westwood, 1840. Intr. Mod. Class. Ins. 11. 
See p. 118 of the Synopsis of the Genera of British Insects. 
Quercus sp. 
quercicolens, Lachnus Ashmead, 1881, Can Ent. XIII, p. 155. 
Quercus virginiana. 
