61 



Cocklebur, xxi, 52. 



as food plant of Euphoria inda, xxiii, 

 101. 

 of Garden Web-worm, xxiii, 90. 

 of Grass-worm, xxiii, S2. 

 of Pale-striped Flea-beetle, xviii, 



21; xxi, 121; xxiii, 108. 

 of Stalk-borer, xxiii, 46. 

 of Tanvmecus confertus, xxi, 

 145. 

 infested by Sorghum Mealy Bug, xviii, 

 107. 

 Codling-moth, Misc. Ess., 9, 22; xv, 2. 

 and curculios, experiments on the, 

 Misc. Ess., 26-45. 

 with arsenical poisons, Misc. 

 Ess., 27, 28-37, 40, 41, 42- 

 44. 

 with lime, Misc. Ess., 37-39, 

 41 ; tabular exhibit. 44-45. 

 with London purple. Misc. 

 Ess., 35-37 ; tabular ex- 

 hibit, 43-44. 

 with Paris green, Misc. Ess., 

 30-35, 40, 41; tabular ex- 

 hibit, 42-43. 

 summary and recapitulation 

 of, Misc. Ess., 39^1. 

 benefit from once or twice spraying 



with Paris green for, xv, 11, 15. 

 comparison of Paris green and other 



poisons for, xv, 14, 20. 

 danger-line in spraying with arsenical 



poisons for, xv, 14. 

 experiments with arsenical poisons 



for, xv, 7-20. 

 life history of. Misc. Ess., 39. 

 older standard measures against, Misc. 



Ess., 26. 

 practice and methods of spraying for, 



xvi, X. 

 protection against curculios afforded 



by poison sprays for, xv 15. 

 ratios of benefit from arsenical poi- 

 sons used for, xv, 8, 12. 

 summary of final outcome of Paris 

 green experiments on, in 1885 and 

 1886, xv, 12. 15. 

 tabular exhibit of spraying experi- 

 ments for, xv, 16-20. 

 time at which spraying is most effec- 

 tive for, xv, 13. 

 Coelinius meromyzse as parasite of 

 Wheat Bulb-worm, xiii, 25, 26, 29 ; 

 xiv, 54; xv, 36. 

 description of, xiii, 26. 

 niger as parasite of European Wheat 

 Oscinidae, xiii, 24. 

 cneruleocinctus, lulus, or Julus, xiii, 139; 

 xxiii, 223. 



cognatus, Atsenius, xxiii, 183. 

 Cohn's solution, xix, 55. 

 Colaspis, xiii, 157. 



brunnea, xxiii, 104-106. 



appearance of larva of, and illustra- 

 tions of different stages of, xxii, 

 146, 147. 

 costipennis, xiii, 157. 

 description of, xiii, 156; xxi, 115; 



xxii, 149. 

 distribution of, xxii, 148. 

 feeding habits and range of, xxi, 



125. 

 injuries by, xiii, 62, 86, 144, 151, 

 156; xxii, 145, 148, 149; xxiii, 104- 

 106, 228. 

 life history of, xiii, 157; xxi, 125; 

 xxii, 148. 

 compared with that of other 

 strawberry root-worms, xiii, 

 166-169, 175. 

 literature of, xiii, 156. 

 (For natural enemies of, topical ap- 

 plications for, etc., see under 

 Strawberry root-worms.) 

 concerning life history of, xxi, 114. 

 Grape-vine, xiii, 156. See Colaspis 



brunnea. 

 Root-worm, xxii, 145-149; xxiii, 104— 



106. 228. See also Colaspis brunnea. 

 striata, xiii, 159. 

 strigosa, xiii, 156. 

 tristis as strawberry insect, xiii, 62, 



86, 158, 159. 

 sp., xiii, 158. 

 Colastus semitectus on corn ears, decay- 

 ing cotton-bolls, and injured figs, 

 xxiii, 181. 

 Coleophora fletcherella, xxi, 146. 

 Coleoptera, xxiii, 230. 



as strawberry insects, xiii, 60, 61, 62. 

 number of species of, identified as 

 corn insects, xxiii, 11. 

 Coleopterous larva destructive to Corn, 



xxiii, 186. 

 collaris, Disonycha, xxi, 116. 

 Colorado Grasshopper, xiii, 40. See 

 Rocky Mountain Locust or Grass- 

 hopper. 

 Potato-beetle, infection experiments 

 with, xix, 35, 54. 

 killed by gasoline blast-lamp, xxiv, 

 54. 

 colossus, Evarthrus, xix. 26. 

 Columbine as food plant of Zebra-cat- 

 erpillar, xxiii, 171. 

 comes, Typhlocyba, xxi, 79. 

 vitis, Typhlocyba, xxi, 79. 

 Comfrey as food plant of Bristly Cut 

 worm, xxiii, 35. 



