INDEX 



311 



Egg stage, 15 

 Elateridag, 59 

 Ephemeridae, 87 

 Eyes of insects, 13 



Factors favoring insect injury, 



251 

 Fall plowing, 301 

 Fallen fruits, 303 

 Farm animals, use of, 303 



practice, 300 



and insect injury, 259 

 Fecundity of insects, 84 

 Feeling, sense of, 13 

 Fertilizers for insect control, 



304 

 Fifteen-spotted lady-bird, 104 

 Figs, pollination of, 30 

 Filariasis and mosquitoes, 207 

 Fish-moths, 219 

 Flat-head borers, 60 

 Fleas, 162 



as disease carriers, 213 



development of, 215 

 Flies and sleeping sickness, 208 



as disease carriers, 199 



as pollenizers, 37 



as scavengers, 190 



blood-sucking, 166 

 Flour beetles, 236 

 Fly disease, 144 

 Foul brood in bees, 151 

 Fowls 1^5. insects, 137 

 Fruit flies, 83 

 Fumigating dwellings, 246 

 Fumigation, 306 



for mosquitoes, 213 

 Furrows as barriers, 300 



Gall midges, 80 



wasps, 77 

 Galls, uses for, 197 



Gas-tar protectors, 298 

 Geographical distribution, 139 

 Golden -eyed flies, 170 

 Grape phylloxera, 252 

 Grasshopper disease, 144, 147 



injury, 54 

 Grasshoppers as food, 196 

 Green-heads, 169 

 Ground beetles, loi 



Hand picking, 299 

 Head lovise, 156 

 Hearing of insects, 13 

 Heart of insects, 10 

 Hellgrammite, 88 

 Hellebore as insecticide, 296 

 Hemiptera, 18 



as animal parasites, 153 



feeding habits, 41 



habits of, 93 

 Hepialid injury, 74 

 Hessian fly, 81 

 Heteromera, food habits, 67 

 Histerid^E, 189 

 Honey bees, 195 



dew, 256 

 Hopper dozers, 299 

 Horn-fly, 171, 254 



-tails, injury by, 77 

 Horse bot, 178 



flies, no, 169 



manure and arsenic, 297 

 House ants, 242 



fly, 200 



mosquito, 208 

 Household insects, 217 

 Hydrocyanic acid gas, 246, 306 

 Hymenoptera, 20 



injury by, 75 



predatory and parasitic, 



115 

 Hyper-parasitism, 124 



