474 
Gyrinide, eyes of, *31 
Gyrinus, locomotion of, 188; respira- 
tion, 189; tracheal gills, 135 
Haase, 411, 412, 419, 435, 450 
Hemolymph, 127 
Hagen, on Termes, 318; 409, 434, 
435, 445, 446 
Hagens, von, 419 
Hairs, development of, *76; functions, 
76; histology, *76; modifications, 
*75, 76; pollen-gathering, *269 ; pro- 
tective, 298; tenent, *80 
Halisidota, distribution of, 379 
Haller, 435 
Halobates, 191, 366 
Halteres, 58, 116 
Hamilton, on holarctic 
462 
Hammond, 417, 444 
Hamuli, 58 
Hansen, 412, 413, 415 
Harpalus, labium of, *39; maxilla, *38 
Harris, 402, 465 
Hart, 446 
Hartman, 461 
Hatching, 161 
Hatschek, 439 
Hauser, on smell, 98, 427 
Haviland, on termites, 320 
Hawaii, beetles of, 372; 
tera, 373 
Hayward, on stridulation, 106 
Head, 28; segmentation of, 44, *46 
Hearing, 106 
Heart, *125, *126 
Heath, on Termopsis, 318; 458 
Heer, on fossil insects, 385, 389, 464 
Heider, 440, 441, 444 
Heilprin, 463 
Heim, 454 
Heinemann, 433 
Heliconiide, mimicry, 225 
Heliophila, 383 
Helm, 420 
Hemelytra, 58 
Hemerocampa, parasites of, 312 
Hemimeride, 11 
Hemimerus, *to ; hypopharynx of, *4o 
Hemiptera, defined, *16; mouth parts, 
40, *41; odors, 82; origin, 2 
Henking, 438, 440, 441 
Henneguy, 410 
Hensen, 426 
Henshaw, 4009, 465 
Henslow, on self-adaptation, 243, 452 
Heptagenia, hypopharynx, *40 
Hermaphroditism, 143, *144 
beetles, 375, 
Hymenop- 
INDEX 
Hesse, 429 
Hessian fly, losses through, 393 
Heterius, 343 
Heterocera, defined, 18 
Heterogeny, 145 
Heterometabola, 157 
Heterophaga, 21 
Heteroptera, defined, *16; spiracles of, 
66 
Hexagenia, 13, *14; male genitalia, 
*71 ; tracheal gills, *134 
Hexapoda, defined, 4 
Heymons, 412, 413, 420, 438, 442 
Hicks, on olfactory pits, ror 
Hickson, 427 
Higgins, 446 
Hilton, 423 
Hind intestine, 
Histogenesis, 180 
Histolysis, 180 
Hoffbauer, 417 
Holarctic realm, 375 
Holcaspis, galls of, *254 
Holmes, 461 
Holmgren, 416, 425, 436, 439 
Holometabola, 156 
Holopneustic, 134, 188 
Holoptic, *33 
Homoptera, defined, 16 
Honey, 326 
Honey ants, 336, *337 
Honey bee (see Apis mellifera) 
Hopkins, A. D., 405 
Hopkins, F. G., on 
447, 448 
Hoplia, sexual coloration of, 207 
Horn, on Cicindela, 214 
House fly (see Musca) 
Howard, on Crioceris, 381 ; economic 
entomology, 402, 407; parasitism, 
312; 410, 456, 457, 458, 463, 465 
Hubbard, on parasitism, 313 
Huber, on wax, 322 
Hudson, 462 
Humboldtia, 275 
Hunter, 410 
Hutton, 413 
Huxley, on aphids, 238; 414, 437 
Hyaloplasm, 88 
Hyatt and Arms, quoted, 22; on accel- 
eration of development, 178; 410, 
412, 443, 444 
Hybernia, 196 
Hydnophytum, *275 
Hydrophilus, 18, *20, *185; antenne, 
35; leg, *187; locomotion, 186; male 
genitalia, *71 ; respiration, 189 
Hydrotropism, 346 
xrT7, S120 
pigments, 1096, 
