and 
Kerosene emulsion and m\K\.\xrtfs — Co/iii/ii/cif. 
for San Jose Scale, 59. 
and whale-oil soap solution, comparative 
cost of, 43, S7- 
cost per gallon of ten per cent., 110. 
for Cottony Maple Scale, 106 — 114, 116. 
formula for, and directions for making, 
III, 116 — 117. 
injury to trees by, 108, 112 — 114. 
Kingbird, 149. 
Lachnosterna, 135 — 168. 
arcuata, article on, cited, 137. 
reared from egg to adult, 137. 
beetles, collections of, at lights 
trees compared, 139 — 140. 
at lights in given loca'ities in differ- 
ent years compared, 140, 141. 
comparative collections of, from differ- 
ent food plants, 144. 
dissections of, to determine food of, 
144 — 145. 
evening flight and morning dispersal of, 
146, 148 — 150. 
habits of reproduction of, 150 — 154. 
oviposition of, general and specific notes 
on, IS3— IS4- 
period of activity of, 151. 
ratio of males to females in collections 
of, 151, 152. 
crenulata, 154, 163. 
dubia, 139, 141, 151. 
ephelida, 153. 
fusca, 137, 138, 139, 140, 141, 
144, 151. 152, 154- 
gibbosa, 137, 139, 140, 141, 142, 
152- 
hirticula, 137, 138, 139, 140, 141, 
149, 151, 152, 153. 
ilicis, 137, 139, 140, 141, 143, 
151, 152, 153- 
implicita, 137, 138, 139, 140, 141, 
149, 151. 152, 153. 154. 
injurious species of, found in Illinois, 137. 
inversa, 137, 138, 139, 140, 141, 143, 144, 
2, 153- 
injurious species of, 
137 — 140- 
rugosa, 137, 139, 140, 141, 143, 144, 14s, 
149, 150, 151, 152. 
species, modes and places of hibernation 
of, in central Illinois, 155 — 156. 
variation in numbers and dominance of, 
140 — 142. 
tristis, 137, 138, 139, 140, 
152. 
(See also White-grubs.) 
L,adybug, Twice-stabbed, 
tony Maple Scale, 115. 
L,adybugs as enemies of same, 115- 
142, 143. 
143, 144. 
143, 144. 
144, 149. 
143, 144. 
I4S, 150, 151, 1; 
life histories of 
141, 143, 144, 
enemy of Cot- 
Lark, Horned, 149. 
Lasius alienus, 19, 21, 22, 24, 25. 
feeding on earthworm, 26. 
niger alienus, 14. 
lecanii, Coccophagus, 114. 
Ligyrus gibbosa, 137. 
relictus, 137. 
I,ilac as food plant of May-beetles, 143. 
Linden, or Basswood, injuries to, by Cot- 
tony Maple Scale, 102, 103, 116. 
Liriodendron as food platit of May-beetles, 
143- 
lividus, E^uderus, 128. 
Locust, Black, subject to injury by Cottony 
Maple Scale, 103. 
Lyttkins, August, 168. 
M 
McHenry, S. A., 43, 48. 
Macrophthalma disjuncta as parasite of 
White-grubs, 160. 
general description of adult of, and in- 
sectary notes on, j6i. 
maidiradicis, Aphis, 8. 
Mally, C. W., 44- 
Maple, Hard, 103. 
Soft, injuries to, by Cottony Maple Scale, 
102, 103, 116. 
marginata, Epicauta, 54. 
May-beetles. See Lachnosterna beetles and 
White-grubs. 
Meadow-lark, 149. 
Meloid larvae as White-grub parasites, 162. 
Melolontha vulgaris and M. hippocastini, life 
cycles of, 137. 
monilifera, Populus, 143. 
Muck- worm, 137. 
Mulberry, Cottony Maple Scale found on, 
103. 
N 
Nason, Wm. A., 129. 
Nasturtiums flamed with gasoline blast-lamp, 
52- 
niger alienus, Lasius, 14. 
nitida, Allorhina, 137. 
Oak as food plant of May-beetles, 143, 144. 
injury to, by Cottony Maple Scale, 103. 
Oaks, Lachnosterna beetles collected from, 
141. 
Oats, effect on Corn Root-aphis of change 
of crop from Corn to, 20 — 24, 28. 
fields abandoned by Corn Root aphis, 23. 
Oberea sp., 127. 
tripunctata, 127 — -128. 
ulmicola, 118 — 134. 
Ophion bifoveolatum as parasite of White- 
grubs, 161. 
