380 



INDEX 



Hamuli, 338 

 Hand picking, 40 

 Harlequin bug, 171 

 Harmolita grande, 348 



tritici, 348 



Harpalus caliginosus, 100, 117 

 Harvest flies, Dog-day, 189 

 Hawk moths, 287-290 

 Head, 7 



Healthy crops, 39 

 Hearing : in crickets, 88 



in grasshoppers, 85 



in green grasshoppers, 87 

 Heart, 19 

 Heat, 41 



Hedgehog caterpillar, 277 

 Heliothrips haemorrhoidalis, 155 

 Hellebore, 48 

 Hellgrammite, 221 

 Hemerocampa leucostigma, 260 

 Hemielytra, 168 

 Hemimetabola, 26 

 Hemiptera, 168-185 

 Hemispherical scale, 218 

 Hesperiidae, 290 

 Hessian fly, 312 

 Heterocera, 234 

 Heterometabola, 26 

 Hexapoda, 2 



characters of, 5 



as a class, 59 

 " Hickory horned devil," 280 



tiger moth, 277 

 Hind-intestine, 15 

 Hippodamia convergens, 134 

 Hive bee, 362 

 Holometabola, 26 



development of, 27 

 Homoptera, 186-220 

 Honey, 364 



ants, 371 



bees, 362 



-dew, 186, 194, 195, 217, 368, 370 



sac, 364 

 Hornets, 360 

 Horn-tails, 343, 344 

 Horse bot flies, 319 



flies, 314 

 House ants, 373 



fly, 297, 321 



mosquito, 306 

 Human body louse, 165 

 Humming bird moths, 287-290 



Hydrocyanic acid gas, 57 

 HydrophilidaB, 102 

 Hylemyia antiqua, 329 



brassicse, 327 

 Hymenoptera, 338-374 

 Hyperparasites, 344 

 Hyphantria cunea, 278 

 Hypoderma bovis, 318 



lineatum, 318 

 Hypodermis, 7 

 Hypognathous, 8 

 Hypopharynx, 10 



I 



Icerya purchasi, 135, 219 



Ichneumon flies, 343-346 



Ichneumonoidea, 343-346 



Ileum, 16 



Imaginal buds, 28 



Imago, 28 



Imperial moth, 281 



Imported cabbage butterfly, 293, 296 



Inch worms, 252-255 



Inquilines, 347, 361, 362 



Insecticides, 43 



classes of, 43 

 Insect orders; their relations, 60 



powder, 53 

 Insects, 2 



characters of, 5 



external structure of, 6 



internal structure of, 15 

 Instar, 27 



Introduced insects, 35, 296 

 lo moth, 286 

 Ipida?, 146-149 

 Iridomyrmex humilis, 371 

 Isabella tiger moth, 277 

 Isia isabella, 277 

 Isoptera, 91-93 

 Italian honey bee, 363 

 Itonididse, 311-314 



Japanese beetle, Green, 114 

 Japanese silkworm moth, 284 

 Jelly-fish, 1 

 Jerusalem crickets, 87 

 Jigger flea, 336 

 Jugum, 232 



Jumping plant lice, 187, 193 

 June bugs, 110 



