INDEX. 



473 



Grass, leaf-hoppers in, 147. 



thrips on, 102. 

 Grasshoppers, hfe-history, etc., 89. 



long-horned, 93. 



short-horned, 85. 

 Green-striped locust, 88. 

 Ground-beetles, described, 166. 

 Grouse locusts, life-history, 92, 

 Gryllidas, defined, 97. 

 Gryllotalpa, 98. 

 Gryllus, species, 99. 

 Gypsy moth, 270. 

 Gyrinidae, 170. 



Haematobia serrata, 358. 



Hair-streaks, 245. 



Halisidota, species, 268. 



Halteres, of flies, 327. 



Haltica chalybea, 219. 



Ham-beetle, 193. 



Hammer-head borers, 185. 



Harlequin cabbage-bug, 162. 



Harrisina americana, 264. 



Harvest-flies, 139. 



Haustellate mouth-structures, 16. 



Hawk-moths, 254. 



Head and its appendages, 14. 



-louse, 103. 

 Hearing of insects, 43. 

 Heart, described, 32. 

 Heliothini, 303. 

 Heliothis armiger, 303. 

 Hellebore and its use, 440. 

 Hellgrammites, 72. 

 Hemerobiidge, described, 72. 

 Hemerobius, 74. 

 Hemiptera, chapter on, 100. 



defined, 53, 55. 

 Hen-hce, 71. 

 Hermaphrodites, 46. 

 Hesperidae, 254. 

 Hessian fly, 336. 



effect of late planting, 428. 

 Heterocera, 241, 254. 

 Heteromera, defined, 165, 224. 

 Heteroptera, defined, 53, 100. 



treated, 150. 

 Hickory horned devil, 278. 



phylloxera on, 130. 



Hippiscus discoideus, 88. 

 Hippoboscidse, 369. 

 Hippodamia, 174, 

 Hispidae, 221. 

 Histeridae, 180. 

 Hive-bee, 414. 

 Hog-caterpillars, 257. 



-louse, 104. 

 Homoptera, defined, 53, 100, 106. 

 Honey-ants, 396. 



-bee, 414. 



-devi^, 126. 



-tubes of plant-lice, 126. 

 Hop, Grapta on, 244. 



-louse, life history, 125. 



snout-moth, 306. 

 Hopper-dozers, 92, 464. 

 Horn-fly, 358. 



-tails, 371, 374. 

 Hornets, 406. 

 Horse-bot, 351. 



-flies, 342. 

 House-fly, 356. 



Household pests, 56, 82, 155, 356, 396. 

 Humming-bird hawk-moths, 257. 

 Hybernia tiliaria, 308. 

 Hydrate of lime, dry, 447. 

 Hydrobatidae, defined, 151. 

 Hydrocyanic acid gas, 451. 

 Hydrophilidas, 170. 

 Hymenoptera, chapter on, 370. 



defined, 54, 55. 

 Hypena humuli, 306. 

 Hyperchiria io, 283. 

 Hyper-parasites, 388. 

 Hyphantria cunea, 266. 

 Hypoderma Hneata, 352. 

 Hypopharynx, structure and function, 

 16, 43. 



Icerya, Vedalia against, 421. 



purchasi, 108. 

 Ichneumon flies, 381. 

 Ichneumonidae, 381. 

 Ileum, described, 30, 

 Indian Cetonia, 204. 

 Incomplete metamorphosis, 50. 

 Injectors, 433. 

 Inoculation of trees, 453. 



