312 



INDEX 



Incomplete metamorphosis, 1 7 

 Indian-meal moth, 242 

 Injury caused by insects, 269 

 Insect powder, 276, 277 

 Insecticide machinery, 299 

 Insects as disease carriers, 199 



as food, 196 



as medicine, 197 



defined, 10 

 Instars =^ stages, 1 5 

 Introduced insect pests, 252 



plants, 252 



Jigger flea, 163 

 June bugs, 63 



Katydids, 57 

 Kerosene, 286 



emulsion, 287 



Lace-wing flies, 89 

 Lace-insects, 195 

 Lady-bird beetles, 102 

 Lamellicornia, 62 

 Lampyridae, 108 

 Larder beetles, 189 

 Larval stage, 15 

 Leaf -feeding insects, 258 



hoppers, injury by, 257 

 Lepidoptera, 20 



as parasites, 161 



as poUenizers, 34 



injury by, 72 



predatory, 109 



Machinery, 299 

 Malaria, how carried, 203 

 Mantids, habits of, 95 

 MantispidtE, 90 

 May beetles, 63 

 flies, 87 



Meadow grasshoppers, 56 

 Meal snout-moth, 242 



worms, 235 

 Mecoptera, 90 

 Meloidte, habits of, 97 

 Metamorphoses, 15 

 Midges, 167 



injuries by, 261 

 Migration of insects, 140 

 Mineral oils, 285 

 Miscible oils, 288 

 Moisture, effect of, 142 

 Moulting of insects, 1 5 

 Mosquitoes and malaria, 204 



and yellow fever, 206 

 Moths as pollenizers, 34 

 Muscles of insects, 12 

 Museum beetles, 234 

 Myrmeleonidae, 89 



Neuroptera, 18, 88 



feeding habits, 41 

 Nervous system, 12 

 Nut weevils, 67, 262 

 Nymph, 17 



Odonata, habits, 92 

 QJstridse, 176 

 Onion maggot, 82 

 Oriental roach, 227 

 Orthoptera, 18 



injury by, 53 



Ox-bot, 180 



Pain, sense of, 14 

 Paper disks for root maggots, 

 298 



protectors for trees, 298 

 Parasitic flies, 113 



hymcnoptera, 120 

 Parasitism on vertebrates, 153 

 Paris green, 274 



