VI 
Grass— Continued. 
infested by Apple Louse,57. 
by Geoica squamosa, 99,100. 
by larva of Green June Beetle, 144. 
by Prionus Grubs, 146. 
by Schizoneura corni,89. 
by Sorghum Mealy Bug, 107. 
by Trama erigeronensis,93. 
by White Grubs,109,113. 
insect, damage to lawns, XI. 
June, infested by Sorghum Mealy Bug. 
107. 
Maggot, Black-headed, 7. 8, 16, 19. See 
under Black-headed Grass 
Maggot, 
description,20. 
Maggots, 4 
Panic, infested by Geoica squamosa, 100. 
Root Louse,53,57,85-93. 
characters distinguishing from 
Corn Root Aphis,85. 
description, 90. 
economic importance,85,90. 
life history, 88. 
place of hibernation.90. 
plants infested by,57,86-88. 
relations to Ants,89. 
Woolly, 53,104-106. 
description, 105. 
Timothy-, infested by Geoica squamosa, 
99,100. 
by Grass Root Louse,87,88. 
by Sorghum Mealy Bug, 107. 
Grasshoppers. 4,6,158. 
Great-horned Owl as enemy of White Grubs, 
123. 
Green June Beetle, 54,144. 
description of larva, 145. 
food habits, 144. 
larva contrasted with larvas of Lach- 
nosterna and Cyclocephala, 144. 
life history, 145. 
Gregarinse infesting adult Northern Corn 
Root Worm, 161. 
infesting adult Southern Corn Root 
Worm,161. 
Ground Beetles,74. 
Squirrels as enemies of White Grubs, 124. 
H 
Hackberry leaves as food of May Beetles, 
114. 
Halesidota caryas and Edema albifrons de¬ 
foliating Oak and Hickory, X. 
Hamilton, John,24. 
Harris, T. W.,39. 
Hart, C. A.,30,37,90,94,96,97,101,105,140. 
Hart,Lydia M.,171 
Hawk, Broad-winged, as enemy of White 
Grubs, 123. 
Red-shouldered, as enemy of White 
Grubs, 123. 
-tailed, as enemy of White Grubs, 123. 
Hawk —Continued. 
Sparrow, as enemy of White Grubs, 123, 
124. 
Hazel leaves as food of May Beetles, 114,115. 
Heartweed, 62. 
Helianthus blossoms as food of Northern 
Corn Root Worm, 158. 
leaves as food of Southern Corn Root 
worm, 148, 
Hemp to clear ground of White Grubs,112, 
113. 
Hermit Thrush as enemy of White Grubs,. 
121 . 
Hickory, 129. 
defoliated by Edema albifrons and Hale¬ 
sidota caryse, X. 
leaves as food of May Beetles, 114,115. 
hirticula, Lachnosterna,54,113,115,116,117,119^ 
126,138,139,140,143. 
hirtiventris, Lachnosterna.139,140,141. 
Hop Louse,57. 
food plants, 57. 
Hops, injured by Wireworms, 30. 
Hormaphis, 101. 
Horn, G. H.,37.47,141. 
Horn-flv, report of presence in Illinois, XI • 
Hucke, P M., 129. 
humuli, Phorodon, 57. 
Hungarian-grass infested by Corn Root 
Aphis, 61. 
hybridus, Amarantus, 61. 
Hymenopterous parasite, 74. 
parasites of White Grubs, 124,134. 
I 
ilicis, Lachnosterna, 113,140,144. 
imbricornis, Prionus, 54,146. 
immaculata, Cyclocephala, 54,110,113,121. 
implicita, Lachnosterna, 121,140,143. 
impressifrons, Clivina, 8,15. 
inepta, Lachnosterna, 140,144. 
infaustus, Melanotus, 9.42. 
inornata, Tiphia, 124,125. 
Insecticides: arsenic, 49. 
arsenical poisons, 13,49,129,132. 
ashes, wood, 76,77. 
bisulphide of carbon, 50. 
coal-tar, 76. 
copperas, 49. 
and chloride of lime, 49. 
corrosive sublimate, 49. 
Fowler’s solution, 49. 
gas-lime, 50. 
kainit, 50,132. 
kerosene, 49,131. 
emulsion, 49,132. 
lime, 50,76,77. 
chloride of, 50. 
London purple, 13. 
muriate of potash, 50. 
and petroleum, 77. 
Paris green, 13,48,129,132. 
and flour, 15. 
