INDEX 



489 



Hydrotropism, 303 



Hydrous, tergites of, *46 



Hylastinus, 338 



Hylobius, glandular hairs of, *y2 



Hymenoptera, defined, 18; cephalic glands, 

 107; eyes of sexes, *$2; internal meta- 

 morphosis, 162; mouth parts, *42; 

 ocelli, 31; origin, 25; sounds, 91; wing, 

 *56 



Hypatus, 364 



Hypera, 338 



Hypermetamorphosis, 156 



Hyperparasitism, 274 



Hyphae, 217 



Hyphantria, 246 



Hypoderma, larva of, *i42; lineata, habits 

 of, 235; losses through, 411 



Hypodermal colors, 174 



Hypodermis, *6j, *68 



Hypognathous, n 



Hypopharynx, *35, 37, *38, *4i 



I eery a, 428 



Ichneumonidae, *272 



Ileum, *io5 



Imaginal buds, *i6i, "162 



Imago, 137 



Imms, 477 



Incomplete metamorphosis, 138 



Incubation, 358 



Indirect metamorphosis, 137 



Ingenitzky, 451 



Injurious insects, 410; introduction of, 416 



Ino, antennal sensilla of, *85 



Inquilines, 215, 281 



Insecta, defined, 4 



Insectivorous birds, 239; fishes, 237; plants, 

 216; vertebrates, 236 



Inspiration, 123 



Instar, 140 



Instinct, 313; apparent rationality of, 314; 

 basis of, 313; flexibility, 316; inflexi- 

 bility, 315; modifications, 315; origin, 

 317; stimuli, 314; and tropisms, 318 



Integument, 65 



Intelligence, 318 



Interactions of organisms, 379 



Intercalary, appendages, *i32; neuromere, 

 *43; segment, 44 



Interglacial beetles, 346 



Interrelations, of insects, 270; of orders, 20 



Intima, *?6, 106, *i2i 



Iphiclides ajax, polymorphism of, 181 

 Iridescence, 172 

 Iris pigment, *g6, *97 

 Iris "jersicolor, *22o, *22i 

 Irritants, 246 



Isaria, 217 < 



Is la, cocoon of, 148; hairs, 69, 146; hiberna- 

 tion, 36.1; molts, 145 

 Island faunae, 326 

 Isolation, 328 

 Isoptera, n 



Isosoma (see Harmolita). 

 Isotropic, 78 



Ithomiinae, mimicry, 202, 203 

 Itonididae, galls of, 214; paedogenesis, 128 



Jackson, C. F., 431 . 



Jackson, T. W., 465 



Jacobi, 461, 472 



James, W., 468 



Janet, on Atelura, *3oo; on muscles, *78; 

 436, 439, 440, 442, 466, 467 



Japan, 415 



Japanese beetle (see Popillia). 



Japyx, 9, 22; spiracles of, 60 



Jennings, 469 



Johannsen, 456, 465 



Johnson, R. H., 459 



Johnson, W. G., 426, 477 



Jordan, 436 



Jorschke, 445 



Judd, on food of bluebird, 242-; mimicry, 

 208; protective adaptations, 245; pro- 

 tective resemblance, 198; warning col- 

 oration, 199; 460, 463, 464 



Jugum, 54 



Jurassic insects, 341, 345 



Kala-azar, 269 



Kallima, protective resemblance of, *i94 



Kanthack, 464 



Kapzov, 441 



Kathariner, 469 



Katydid, stridulation of, 93 



Kellogg, on Mallophaga, 233; mouth parts, 



40; phototropism, 310; pilifers, *4o; 



scales, 70, 172; swarming, 286; 431, 



435, 436, 458 

 Kenyon, 432, 443 

 Kidney tubes, *io8 

 Kielich, 442 

 Kilborne, 269 



