— \ -' ■' - ■ , 1 <1 
II 
Burning for Chinch Bug, 53. 
for Sphenophorus, 72. 
stubble for Sphenophorus robnstus, 71. 
sculptilis, 62. 
Burrowing Web Worm, IX,98. 
description of imago, 100. 
description of larva, 99. 
injury to Corn,98. 
C 
Cabbage, injury to, by meadow maggots, 79. 
by Spotted Cutworm, 86. 
Worm, European, IX 
Camo'genes mortipennella, X,101. 
Cactophagus, 59. 
Calandridse, 58. 
callosus, Sphenophorus, 60. 
Canadian Entomologist cited, 60,62,98,101. 
carious, Sphenophorus, 58,60,64,67,68,71. 
Carter, Joseph, on Sphenophorus placidus, 71. 
Catbird feeding on Sphenophorus, 71. 
Cat-tail,food plant of Sphenophorus pertinax, 60. 
Cherries, injury to, by Lady Bug, XI. 
Chester, E. E., on sowing timothy with wheat 
as protection against Chinch Bug, 52. 
Chickens feeding on Sphenophorus, 71. 
Chinch Bug, IX, X,XII. 
barriers to migration of, 43,56. 
coal-tar, 43,56. 
and oil, 43,56. 
breeding in Oats, 51,54. 
contagious diseases of, 2,40,45,56. 
early occurrence of, in Illinois, 50. 
effect of, on grain and corn, 50. 
effect upon, of abandoning corn as a crop, 5. 
of the abandonment of wheat culture, 
6,55. 
of the successive abandonment of corn 
and wheat, 6. 
food experiments with, 50. 
influence of excessive drouth upon, 5. 
injury, collection of data concerning, 8. 
comparison of the crops for 1886 and 
1887 with reference to, 21. 
experiments with fertilizers to support 
crop against, 35. 
general remarks upon the tables exhibit¬ 
ing degree of, 10. 
relations of the area of wheat and other 
crops to, 7. 
study of data concerning, 9. 
to all crops combined, compared with 
average of each, 22-32. 
to corn as compared with acreage in 
wheat and other grains, 11-16. 
to grass as compared with areas in wheat 
and other crops, 16-18. 
to meadow, 51. 
to small grain, corn, and grass, reported 
by townships, 1887, 3,4. 
as compared wiih the area in wheat 
and other crops, 19-21. 
Chinch Bug, miscellaneous notes and observa¬ 
tions upon, 50. 
Negro Bug associated with the, 51,57. 
oviposition of, in midsummer, 51. 
precaution in burning out, in spring, 53. 
secondary effects upon, of the abandonment 
of wheat, 6. 
sowing timothy with wheat as protection 
against, 52. 
starvation experiments, 45,56. 
studies on the, 1-57. . • 
summary and conclusions, 53. 
successful defence of corn against, 53. 
summary of current opinion respecting 
wheat culture and the, 32. 
Chocolate-striped Cutworm, description of larva, 
87. 
cicatricosus, Sphenophorus, 60. 
Cincinnati Society of Natural History, Journal, 
cited, 59. 
clandestina, Agrotis, 85. 
Clay-backed ( Cntworm, IX,85,89. See Cutworm, 
Clay-backed. 
-colored Bill Bug, 59, 69. 
Clover, injury to. by Clay-backed Cutworm, 90, 
91,92. 
by Dingy Cutworm, 88. 
by meadow maggots, 79,S2. 
by tipulid larva, XI. 
White, injury r to by Western Striped Cut¬ 
worm, 89. 
Club Rush as food plant of Sphenophorus 
ochreus, 58,66,69. 
Coal-tar as barrier to migration of Chinch Bug, 
43,56. 
and oil or grease as barrier to migration of 
Chinch Bug, 43,56. 
emulsion for Chinch Bug, 41,56. 
water, effect on corn, 40. 
for Chinch Bug, 40,56. 
Codling Moth, spraying apple-trees to protect 
fruit from, X. 
Coleoptera of North America, checklists, cited, 
59. 
Coleus, effect of steam upon, 43. 
communis, Phragmites, 58. 
Comstock, J. H., on Sphenophorus pertinax, 60. 
robustus, 60. 
sculptilis, 61,62. 
concavus, Lixus, 76. 
Conotrachelus nenuphar, feeding habits of, 76. 
Contagious disease of Chinch Bug, 2,40,45,56. 
Cornnelsena pulicaria, 51. 
Corn, 54. 
as food of Tenebrioides mauritanica, XI. 
Bill Bugs, 58-74. See under Sphenophorus 
frenching of, 62. 
injury to, by Burrowing Web Worm, X,98, 
100 . 
by Chinch Bug, 3,4,11-16. 
by Clay-backed Cutworm, S4. 90,91,92. 
by cutworms, 84. 
by Dingy Cutworm, 88. 
by Greasy Cutworm.. 85,93. 
