IV 
Corn Root Aphis— Continued. 
rank as a Corn pest, 58. 
rate of multiplication. 64. 
relation to Ants, 66-68. 
to Corn Leaf Aphis, 69-74. 
transfer to leaf of Corn, 70. 
blight, 5, 52, 59. 
lice, 4,52,53,55,57. See under Plant- 
lice. 
Louse. See under Corn Root Aphis. 
Web-worms, 6. 
Worm, Northern, 34, 55, 146, 154-165. 
See under Northern Corn 
Root Worm. 
Southern, 55,146-154. See under 
Southern Corn Root Worm. 
Worms, 4,5,52,53,58. 
synopsis of injuries to roots, and order 
of discussion, 53. 
Wire worm, 9,21,42-44,55. 
description, 43. 
hibernation, 43. 
length of larval life, 43. 
relative abundance, 42. 
Worm, 5. 6, 25. 
corni. Schizoneura, 57,86,89. 
Cornus as food plant of Schizoneura corni, 
89. 
corrosa, Lachnosterna, 110,143. 
Corrosive sublimate for Wireworms, 49. 
Corymbites, 32. 
Corymbitlni, 31. 
Cosmos, petals of, as food of Southern Corn 
Root Worm, 148. 
Cotton-plant blossoms as food of adult 
Northern Corn Root Worm, 158. 
as food of adult Southern Corn Root 
Worm, 148. 
Crab-grass infested by Corn Root Aphis,61. 
by Woolly Grass Root Louse, 105. 
Crambus camurellus damaging lawns, XI. 
erassissima, Lachnosterna. 139, 142. 
crenulata, Lachnosterna, 116,140,144. 
cribulosus, Melanotus, 9,21,32,42. 
crispus, Rumex, 61, 74. 
Crow as enemy of White Grubs, 138. 
Blackbird as enemy of White Grubs, 123, 
124. 
as enemy of Wireworms, 48. 
crus-galli, Panicum, 100. 
Cryptohypnus, 32. 
Cucumber vines infested by Northern Corn 
Root Worm, 158. 
as food of adult Southern Corn Root 
Worm, 148,152. 
Cutworms, 4,6,50. 
Cyclocephala and Green June Beetle larvae 
contrasted, 144. 
and Lachnosterna, 109-144. See under 
White Grubs, 
description of larva, 138. 
life history, 121. 
immaculata, 54,110,113,121. 
food of larva, 115. 
Cyclocephala immaculata— Contiuued. 
leaves of trees rejected by adult,115, 
Cyperus strigosus infested by Southern 
Corn Root Worm, 148. 
D 
Dactylopius, 56,68,106. 
in nests of Ants, 100. 
sorghiellus, 53,106-108. See under Sor¬ 
ghum Mealy Bug. 
Dahlias injured by Wireworms, 30. 
petals of, as food of Southern Corn Root 
Worm, 148. 
debilis, Solenopsis, 8,9,53,66,99,100. 
decoloratus, Asaphes, 9,30,55, 
densa, Isaria, 127,133. 
Dexidae, 125. 
Diabrotica 12-punctata, 55, 146-154, 157. See 
under Southern Corn Root Worm, 
longicornis, 34, 55, 146, 148, 154-165. See 
under Northern Corn Root Worm. 
Dipterous parasites of Southern Corn Root 
Worm, 151. 
of White Grubs, 125. 
Diseases of European White Grubs, 127, See 
also under Bacterial and Fungus. 
Disonycha pennsylvanica injuring Apples, 
XI. 
Dock infested by Corn Root Aphis, 61,74. 
Dogwood as food of Schizoneura corni, 86,89. 
of Schizoneura panicola, 57. 
Dolopius, 31. 
Dor-bugs, 110. See under White Grubs. 
Drasterius, 31,34. 
elegans, 8,29,34,54. 
description. 35. 
injurious to Wheat, 34. 
places of hibernation, 35. 
dubia, Lachnosterna, 139,142. 
Ducks as enemies of White Grubs, 124. 
12-punctata, Diabrotica, 55,146,157. 
£ 
Earthworms, 163. , 
Edema albifrons and Halesidota albifrons 
defoliating Oak and Hickory, X. 
Eggs of Agonoderus pallipes, 13. 
of aphides, 57,89. 
of Apple Louse. 57. 
of Black-headed Grass Maggot, 19. 
of Corn Root Aphis, 60,62,63,64,65,66,67, 
68,72,73,74.75,79,84. 
'of Drasterius elegans, 36. 
of Geoica squamosa, 99,101. 
of Green June Beetle, 145. 
of Lachnosterna rugosa, 113. 
of Lasius niger and its var. alienus. 83,84. 
of Hbcusts as food of White Grubs, 114. 
of May Beetles, 109,110,113,115,118,119,121, 
122,127,128,129. 
of Myrmica scabrinodis lobicornis, 12. 
of Northern Corn Root Worm, 156,158, 
159,160,161,162. 
of Sorghum Mealy Bug, 107. 
