IX 
N 
Nematoid Worms as parasites of adult 
Southern Corn Root Worm, 152. 
Nettle, Horse, as food of adult Southern 
Corn Root Worm, 148. 
niger alienus, Lasius, 53,62,66,71,78,82,85,90, 
107. 
Lasius. 53,62,66.82,85,90,93,96,99,100. 
nigra, Brassica, 61. 
Microphthalma. 125. 
nitida, Allorhina, 54,144. 
Northern Corn Root Worms, 34,55,146,148, 
151-165. 
characters distinguishing from Wire- 
worms and larvae of small Flies, 
155. 
dates at which beetle has been col- 
ected, 160. 
description, 162-165. 
distinguishing characters of larva, 
163. 
distribution, 157. 
food of beetle, 156,157,160. 
habits, 159. 
life history, 158. 
injuries, 154. 
indications of, 155. 
period of, 156. 
most noticeable, 156. 
natural enemies, 161. 
prevention and remedy, 162. 
■nova, Lachnosterna, 140,143. 
O 
Oak defolia'ed by Edema albifrons and 
Halesidota caryae, X. 
leaves as food of May Beetles, 114,115,119. 
Oats, 88,113,122. 
as food of adult Southern Corn Root 
Worm, 148. 
of Corn Root Aphis. 6',75.- 
damage to. by Chinch Bug, IX. 
infested by Geoica squamosa, 99,100. 
attacked by Wireworms, 30. 
occidentals, Forda, 53,57,95. 
Oestlund, O. W., 94. 
oleracea, Portu'aca, 61. 
Onions injured by Wireworms, 30. 
Ophion, 125. 
bifoveolatum as parasite of White Grubs, 
125. 
Osborn, Herbert, 86.135. 
Owl, Barred, as enemy of White Grubs, 123. 
Great-horned, as enemy of White Grubs, 
123. 
Screech, as enemy of White Grubs, 123. 
Oxalis stricta infested by Corn Root Aphis, 
61. 
P 
Packard, A. S., 25. 
Pale-striped Flea-beetle, 8,21-23. 
description, 22. 
food of, 22. 
pallipes, Agon'oderus, 8,12. 
Panic-grass infested by Geoica squamosa, 
100 . 
panici, Rhizobius, 106. 
Tychea, 101. 
panicola, Schizoneura, 51,57,68,85. 
Panicum crus-galli infested by Geoica 
squamosa. 100. 
glabrum infested by Grass Root Louse, 
85. 
by Schizoneura venusta, 93. 
infested by Corn Root Aphis, 61. 
by Grass Root Louse, 88. 
proliferum infested by Woolly Grass 
Root Louse, 105. 
Parasites, hymenopterous, 74,134. 
Parasitic Bacteria, 150,151. 
Diptera, 125,151. 
Fungi, X, 47,74,119,122,126,127. 
destructive to White Grubs, 132,133, 
137. 
Insects as enemies of White Grubs, 124. 
Paris green for Agonoderus pallipes, 13. 
and flour for Aphodius granarius, 
15. 
for June Beetles, 129,132. 
for Wireworms, 48. 
Passerini, J., 93. 
Peach pits destroyed by Wireworms, 30. 
Pear leaves as food of May Beetles, 114. 
injured by adult Banded Ips, 24. 
Peck, C. H., 25. 
Pelecinus polyturator as parasite of W 7 hite 
Grubs, 124,131. 
Pemphiginm, 101,106. 
Pennsylvania, Disonycha, XI. 
Pergande, H., 85. 
Pergande, Theodore, 11. 
Perkins, G. H., 114,132. 
Petroleum and muriate of potash for Corn 
Root Aphis, 77. 
and sulphate of potash for Corn Root 
Aphis, 77. 
and superphosphates for Corn Root 
Aphis, 77. 
crude, for Wireworms, 49. 
emulsion for Wireworms, 49. 
Pettit, J., 37. 
Phallus as food of adult Northern;Corn Root 
Worm, 158. 
phaseoli, Tychea, 98,101. 
Phorodon humuli, 57. 
food plants, 57. 
Pigeon-grass, 33,80. 
as food of Corn Root Aphis, 61,62,67,75. 
Pigs as enemies of White Grubs, 124,128,132. 
Pigweed, 33. 
as food of Pale-striped Flea-beetle, 22. 
infested by Corn Root Aphis, 61. 
Pinks injured by Wireworms, 30. 
Plantago major infested by Corn Root 
Aphis, 61. 
Plantain as food of Pale-striped Flea-beetle, 
22 . 
