XIII 
V 
venusta, Schizoneura, 93. 
Yer blanc.110. See under White Grubs. 
vespertina, Serica, 133. 
villifrons, Lachnosterna, 140,143. 
viridis, Setaria,93. 
Voorhees.E. B., 50. 
vulgaris, Melolontha,133. 
W 
Walles, A... 130. 
Walnut, Black, leaves of, as food of May 
Beetles, 114. 
Walsh,B.D.,17,24,64,114. 
Warren,B. H.,123. 
Weasels as enemies of White Grubs,124. 
Webster, F. M., 10,15,17,34,37,148,149,150,154, 
158. 
Weed, C. M., 61,70,89. 
Weevils, 6 
Westergren. M., 171. 
Wheat, 88. 
as food of Corn Root Aphis, 61,75. 
of larva of Green June Beetle, 144. 
as food of Wireworms,29. 
Corn Leaf Aphis, breeding on,74. 
infested by Schizoneura venusta,93. 
by Drasterius elegans, 34. 
by Wheat Wireworm.37. 
kernels as food of adult Southern Corn 
Root Worm, 149. 
liable to injury by White Grubs, 114. 
Spring, as breeding place of Chinch Bug, 
VIII. 
stalk infested by Southern Corn Root 
Worm, 148. 
Wireworm, 8,36-39,54. 
description,38. 
notes on life history, 37. 
relative abundance,37. 
White Ants.injuries at State House, X. 
fungus of Chinch Bug, X, 127, 136.1 
grub of Green June Beetle contrasted 
with larvae of Lachnosterna and Cy- 
clocephala,144. 
Grubs. 4,5,50,52,53,54,55,58,109-144. 
contagious diseases of, 133-137. 
White Grubs— Continued. 
description of, 137-139. 
eggs of,109,110,119. 
European, diseases of, 127. 
standard method against, 129. 
food of imagos,114,115. 
preferences of separate species, 
115. 
of larvae, 109,114. 
fluctuation of numbers, 109. 
injuries,111-115. 
life history and habits, 115-122. 
locust eggs as food of, 114. 
natural enemies, 122-127. 
number of species in Illinois, 110. 
preventive and remedial measures 
against, 127-132. 
general, 129. 
local, 127. 
species injurious to Corn in Illinois, 
113. 
Wilcox, E. V., 47, 123. 
Willow leaves as food of May Beetles,114. 
Wireworm, Corn, 9, 21, 42-44,55. See under 
Corn Wireworm. 
Wheat, 8,36-39,54. See under Wheat 
Wireworm. 
Wireworms,4,5,7,8,21,28-51,52,54, 58, 147,163. 
generic synopsis,31. 
natural enemies, 47. 
prevention and remedy,48. 
Woodpecker as enemy of White Grubs, 123. 
Wood Thrushas enemy of White Grubs.123. 
Woodworth,C. W.,161. 
Woolly Grass Root Louse,53,101-106. 
description, 105. 
X 
Xanthium strumarium infested by Sorghum 
Mealy Bug, 107. 
Y 
Yellow Sorghum Louse,70,72. 
Z 
zeas, Anthomyia.8,16. 
zeas, Anthomyia, 8,16. 
♦ 
