86 Wisconsin Academy of Sciences, Arts, and Letters. 
torum, B. unioloides, CJiaetocJiloa dactylon, C. viridis, Cyno- 
don dactylon, Dactylis glomerata, Digitalis sanguinalis, Distich- 
Us spicata, Echinochloa crus-galli, Eleusine indica, Elymus 
canadensis, E. striatus, E. virginicus, Eragrostis megastachya, 
E. pilosa, Fagopyrum esculentum, Festuca elatior, F. hetero- 
phylla, F. ovina-duriuscula, F. rubra, Heteropogon hirtus, Hor- 
deum caespitosum, H. jubatum, H. murinum, H. pusillum, H. 
vulgare, Juncus tennis, Lolium multiflorum, L. perenne, L. tem- 
ulentum, Medicago sativa, Phalaris canariensis, Phleum pra- 
tense, Poa annua, P. compressa, P. pratensis, Polypogon mon- 
speliensis, Secale cereale, Setaria glauca, 8. italica, Sorghum 
halepense, 8. vulgaris, Sporobolus neglectus, 8tipa setigera, 8. 
viridula, Triticum sativum, T. spelta, T. villosum, T. vulgare, 
vea mays. 
graminus, Schizoneura Del Guercio, 1895. Natural. Sicil. XIV, p. 
84. 
Triticum vulgare. 
graiiariiim, Macrosiphum (Kirby), 1798. Trans. Linn. Soc. Lon¬ 
don, IV, p. 238. Aphis. 
Agropyron repens, Avena fatus, A. sativa, Bromus commutatus? 
B hordeaceous, B. secalinus, Chaetochloa glauca, Dactylis glom¬ 
erata, Echinochloa crus-galli, Eleusine indica, Elymus canaden¬ 
sis, E. virginicus, Festuca heterophylla, F. ovina-duriuscula, F. 
tectorum, Frageria grandifiora, Glyceria fiuitans, Holcus sp., 
Hordeum jubatum, H. murinum, H. pusillum, H. vulgare, Jun¬ 
cus tenuis, Lolium multiflorum, Poa compressa, P. pratensis. 
Polygonum sp., Secale cereale, Seteria glauca, 8. italica, 8yn- 
therisma sanguinale, Triticum sativum, T. vulgare, Zea mays. 
granulatus, Chaitophorus Koch, 1854. Die Pflanzenlause Aphi- 
den, p. 13, fig. 
Acer campestre 
gravicomis, Pemphigus Patch, 1913. Me. Agr. Exp. Sta. Bui. No. 
213, p. 75, fig. 
Populus balsamifera. 
greeni, Lachnus Schouteden, 1905. Spolia Zeylanica, II, p. 184, fig. 
Cryptomeria sp. 
grindeliae, Atarsos Gillette, 1911. Ent. News, XXII, p. 440, fig 
Grindelia squarrosa. 
grindeliae, Macrosiphum (Williams), 1911. Aphididae of Ne¬ 
braska, p. 81. Siphonophora. 
Grindelia squarrosa. 
