88 Wisconsin Academy of Sciences, Arts, and Letters. 
helianthl, Aphis Monell, 1879. BuL* U. S. Geol. & Geog. Surv. 
Terr., V, No. 1, p. 26. 
Cornus sp., Helianthus annuus, H. divaricatus, H. giganteus, H. 
grosse-serratus, H. petiolaris, H. scahherimus, H. tuberosus. 
helichrysi, Aphis Kaltenbach, 1843. Mon. der Pflanzenlause, p. 
102 . 
Achillea ligustica, A. millefolium, A. odorata, A. ptarmica, Ager- 
atum conizoides, Anthemis tinctoria, Aster sp., Bidens fron- 
dosa, Bidens tripartita. Chrysanthemum balsamita, Erigeron 
canadensis? Onaphalium uglinosum, Helichrysum arenanum, 
H. chrysanthemum, H. stoechas, Hieracium umbellatum, Lam- 
ium album, L. maculatum, L. purpureum, Leonurus cardiaca, 
Matricaria sp., Myosotis palustris, Prunus insititia, Senecio 
vulgaris, Tanacetum vulgare, Trifolium pratense. 
heliotropiiy Aphis Macchiati, 1885. Bui. Soc. Ent. Ital., XVII, p. 
69. 
Heliotropium europaeum. 
hemisphericum, Phylloxera (Shimer), 1869. Trans. Am. Ent. 
Soc., II, p. 387. Dactylosphaera. 
Carya alba. 
heraclei, Aphis Koch, 1854. Die Pflanzenlause Aphiden, p. 50, flg. 
Aethusa cynapium, Apium graveolens, Arctium sp., Daucus carota, 
Heracleum spondilium. 
heraclii, Aphis tJowen, 1895. Hemiptera of Colo., p. 120. 
Heracleum lanatum, Pastinaca sativa. 
hermistonii, Aphis Wilson, 1915. Trans. Amer. Ent. Soc. XLI, p. 
93, flg. 
Artemesia tridentata. 
heucherae, Macrosiphum (Thomas), 1879. Eighth Kept. State 
Ent. Ill., p. 66. Siphonophora. 
Heuchera hartwegii, H. hispida. 
hexagona, Forda Theobald, 1913. The Ent. Record, XXVII, p. 53. 
In nest of Formica fusca. 
hlhemaculorum, Aphis Boyer de Ponscolombe, 1841. Anns. Soc. 
Ent. Prance, X, p. 181. 
Daphne indica. 
