148 Wisconsin Academy of Sciences, Arts, and Letters. 
rosaeoUae, Macrosiphum Theobald, 1915. Bui. Ent. Research, 
VI, p. Ill, fig. 
Rosa sp. 
rosarum, Lachiius Van Der Goot, 1912. Mitteilungen aus dem 
Natur-historischen Museum, XXIX, p. 279. 
Rosa sp. 
rosarum, Macrosiphum (Koch), 1855. Die Pfianzenlause Aphi- 
den, p. 180, fig. Siphonophora. 
Rosa sp. 
rosarum, Myzus (Kaltenbach), 1843. Mon. der Pfianzenlause, p. 
101. Aphis. 
Potentilla anserina, Rosa califarnica, R. canina, R. centifolia, R. 
gallica, R. ruMginosa, R. rugosa, R. spinosissima. 
rosa-suaveolens, Aphis Rafinesque, 1818. Amer. Mon. Mag. & 
Critic. Rev. Ill, p. 16. 
Rosa ruMginosa. 
*roseus, Myzus Macchiati, 1881. Riv. Sci. Ind. Quid. Vim. Fir. 
Firenze p. ? 
Rosa centifolia, R. gallica, Yucca sp. 
rossica, Oolopha Cholodkovsky, 1897. Zool. Anz., XX, p. 146, fig. 
Also p. 212, Hor. Soc. Ent. Ross. 
Triticum vulgare. 
rotunda, Forda Theobald, 1914. The Entomologist, XLVII, p. 30, 
fig. 
In nest of Tapinoma erraticum. 
rotundiventris, Schizoneura Signoret, 1860. Ann. Soc, Ent. 
France, VIII, p. 178. 
No food plant given. 
rubi, Macrosiphum (Kaltenbach, 1843. Mon. der Pfianzenlause, 
p. 24. Aphis. 
Cytisus scoparius, EpiloMum montanum, Oeum urhanum, Rudus 
caesius, R. corylifolius, R. discolor, R. fructicosus, R. idaeus, 
R. occidentalis, R. villosus. 
rubi, Pemphigus Thomas, 1879. Eighth Rept. State Ent. Ill., p. 
147. 
Ruhus occidentalis. 
