WiUon-Vickery—List of ApMdidae. 
163 
stigma, Schizoneura Curtis, 1844. Gardners Chronicle, IV, p. 37. 
“Fir trees”? 
*strobi, Chermes (Hartig), 1837. Jahrest. Forst. und Forsth. Na- 
turk. im Jahre 1836, and 1837, pp. 643-648. Coccus. 
Picea all)a, Pinus strohus. 
strobi, Lachnus (Fitch) 1851. Kept. Reg. Univ. State N. Y. Cab. 
Nat. Hist., p. 69. Eriosoma. 
Pinus stroJ)us. 
strobilobius, Chermes Kaltenbach, 1843. Mon der Pflanzenlause, 
p. 203. 
AMes balsamea, A. pectinata, Larix decidua, L. laricina, Picea 
alha, P. ahies, P. canadensis, P. englemanni, P. mariana, P. 
orientalis, P. pungens, Pinus sylvestris. 
strobilobius, Obermes Kaltenbach. var. tradoides Cholodkovsky, 
1915. Dept, of Agr. Central Board of Land Admins. & 
Agri., Petrograd., p. 57, fig. 
Larix sp. 
styracophila, Astegopteryx Karsch, 1890. Ber. Deut. Bot. Ges., 
VIII, part 2, p. 52, fig. 
Styrax benzoin. 
subelliptica, Phylloxera (Shimer), 1869. Trans. Amer. Ent. Soc., 
II, p. 389. Dactylosphaera. 
Cary a sp. 
subeid, Tavaresiella Del Guercio, 1911. Redia, VII, p. 299, fig. 
Quercus suber. 
submacula. Aphis Walker, 1848. Ann. Mag. Nat. Hist. ser. 2, II, 
p. 104. 
Food plant unknown, 
subterranea, Aphis Walker, 1852. List Homop. Insects Brit. Mu¬ 
seum, part 4, p. 1033. 
Dianthus plumarius, Pastinaca sativa. 
subterranea, Macrosiphum (Koch), 1855. Die Pflanzenlause 
Aphiden, p. 155, fig. Siphonophora. 
Senecio jacobaea. 
subterraneus, Lachnus Del Guercio, 1900. Nuov. Relaz. Staz. Agr. 
Fir., II, p, 109. 
Lycopersicum esculentum. 
