108 
Clisiocampa constricta, 87. Elymus americanus, 93. s 
erosa, 87. Empusa grylli, 106. ; 
fragilis, 87. Encyrtus websteri, 71. 
strigosa, 87. Entomological notes from Missouri for 1889, 73. 
sylvatica, 101. Entomophthora disease of the Chinch Bug, 60. 
thoracica, 87. Entomophthora calopteni, 104, 106. 
Clover, 19, 47, 75, 82, 98. grylli, 106. { 
-seed midge in Iowa, 19. Epicauta cinerea, 101. ' 
Coccinella 9-notata, 64, 72. Epitrix cucumeris, 19. 
Codling moth in Missouri, 75. Eragrostis megastachya, 37. 
California, 89. Erax larva, probably parasitic on White Grub, 51. 
parasites of, in California, 8,90. Eriosoma? cornicola, 37, 39, 40. 
Coffee bean, 101. 2 fungicola, 37, 38, 40. 
Colorado potato beetle, experiments with, 80, 81. European Cabbage Butterfly in Missorri, 76. ) 
Conozoa wallula, 94. Eureka insecticide, experiments with, 17. 
Contopus virens, 48. / Fabricius’s original description of Aphis corni, 36. 
Coquillett, D. W., Report by, 9. Fall Army Worm, 46. : 4 
Coriscus ferus, 26. False Chinch Bugs in Nebraska, 95. 
Corn, 43, 46, 47, 48, 52, 53, 57, 100. Fertilizing salt, experiments with, 59. 
Sweet, 76. Flea-like negro-bug in Missouri, 75. 
Corn root-worm in Nebraska, 100. Fluted Seale, 9, 12. 
Cornus, 33. Four-pointea Agallia, 28. 
sanguinea, 36. Foxtails (see Setaria). 
sericea, 39. Fungus disease of Chinch Bug, 60. 
Corymelina pulicaria, 75. ° grasshoppers, 104. i 
Cosmos, 75. Gas treatment for Scale insects, 9. 
Cottonwood, 100, 101. Geocoris bullata, 96. 
Jottony Cushion Seale, 9, 12. | Gortyna nitela, 47, 75. 
Crambus exsiccatus, 18. Grain Aphis in Indiana, 64. 
Severe outbreak in 1889, 64. 
Influence of temperature and moisture, 65. 
laqueatellus, 18, 48. 
zeellus, 47, 48. 
Cressonia juglandis, 101. Cool temperature favorable to its develop. 
Crucifere injured by Phyllotreta vittata, 73- ment, 68. 
Cucumber, 76, 22. Eflicacy of parasites, 69. 
Currant, 86, 88. Notes on life-history, 69. 
Cut-worm, a new, 47. Enumeration of natural enemies, 71. 
Cut-worms in California, 88. Other species of Aphids found on wheat, 70. 
Towa, 18, 20. Grain fruits, insects injurious to, 7, 42. 
Nebraska, 97. Grape, 86, 96. 
Dactylis glomerata, 71. Grass, 19, 20, 34, 93, 100. 
Dahlia, 75. Hungarian, 41. 
Datana angusii, 101. Timothy, 45. 
winistra, 44, 45. Grasses, insects injurious to, 7, 20, 41. 
Destructive Leaf-hopper, 30. Grass-root Plant-louse, 32. 
Diabrotica 12-punctata, 19, 52, 76. Grasshoppers in Iowa, 21. 
longicornis, 100. fungus disease of, 104. 
soror, 87. Green-lined Maple. worm in Nebraska, 99. 
vittata, 19. Gryllus luctuosus, 94. 7 
Diamond soluble bone, experiment with, 48. Hackberry, 101. ; ° 
Diedrocephala coccinea, 27, 28. Hadena stipata, 47. 
mollipes, 26. Halticus pallicornis, 82. 
noveboracensis, 27. Hesperotettix pacifieus, 44. 
versuta, 27. Hessian fly in California, 93. 
Dipterous parasite of Army Worm, 98. new food-plants of, 93. 
Diabrotica soror, 87. Ileteroptera infesting grasses, 41. 
Disonycha collaris, 76. ilieroglyphie Leaf-hopper, 28. 
pennsylvanica, 101. Hippodamia convergens, 72. 
Dissosteira carolina, 94. glacialis, 72. 
obliterata, 94. parenthesis, 72. 
Dogwood Plant-louse, 20, 32. 13-punctata, 72. 
Its identity with the grass root-louse, 32. Tfoney Locust, 101. 
Doryphora 10-lineata, 80. Hopper Dozers recommended for Leaf-hoppers,25. 
Drasterius dorsalis, 52. Hungarian grass, 41. 
elegans, 52. Hurtful Leaf-hopper, 31. 
Drymeia sp. parasitic on Army Worm, 46. Hydroecyaniec gas treatment, 9. 
EJm, 74, 100. Hyphantria cunea, 101. 
