472 
Eggs, form of, *159; number, 161; 
size, 160 
Eimer, 452, 459 
Ejaculatory duct, *140, 141, 142 
Elaphrus, stridulation of, 104 
Elimination of unfit, 240 
Ellema, protective resemblance of, 218 
Elm, insects of, 252 
Elwes, 462 
Elytra, 58 
Embia, 12 
Embiide, 11, *12 
Embryology, 146 
Emery, 430, 433 
Emesa, 366 
Empis, nervous system of, *o1 
Empodium, 51 
Empusa, *258, 259 
Enderlein, on Platyptera, 13, 23, 413 
Endoskeleton, *50 
Engelmann, 409 
Enteman, on habits of Polistes, 330, 
365; 450, 458, 460 
Entoderm, 148, 154, *155 
Entomophthoracee, *258 
Environmental variations, 242 
Ephemerida, 13, *14; abdominal seg- 
ments of, 66; eyes of, 33; origin, 23 
Epicauta, hypermetamorphosis of, 174, 
IS 
Epicranium, *29 
Epigamic colors, 235 
Epimeron, 48, *49 
Epipharynx, 37 
Episternum, 48, *49 
Epitheca, dorsal vessel of, *125, *126 
Erebus agrippina, 27; odora, distribu- 
tion of, 367, 380 
Ergatoid, 331 
Eriocephala, mouth parts of, 42 
Eristalis, mimicry by, *225; respira- 
tion, 189 
Eruciform larve, 24, *162, 163, 178 
Erynnis manitoba, distribution of, *377 
Escherich, 420, 438 
Ethiopian realm, 376 
Etiolin, 215 
Etoblattina, *387 
Eudamus proteus, distribution of, 377 
Eugereon, 388, *389 
Euphoria, mouth parts of, 38, *268, 
269 
Euplexoptera, 11 
Euplea, colors of, 195 
Euproctis, 352 
Euschistus, antenna of, *34 
Eutermes, 320 
Euthrips, *15 
INDEX 
Everes, androconium of, *79 
Excrements, 120 
Exner, on compound eyes, III, 112, 
428, 459 
Expiration, 139 
Exuvie, 165 
Eyes, compound, *31, 110; kinds of, 
*31; simple, *32, *109; sexual dif- 
ferences in, *33 
Fabre, J. H., on Sphex, 359; 432, 457, 
459 
Fabre, J. L., 429, 442 
Pacetsy 3a 
Fat-body, distribution of, 128, *129; 
functions, 130; structure, *130 
Fat-cells, 129, *130 
Faune of islands, 371 
Faunal realms, 374 
Faussek, 430 
Felt, E. P., 403 
Female genitalia, *69 
Femur, *49, *51, *53 
Fenard, 439 
Fenestrate membrane, 111, *112 
Fenger, 418 
Feniseca, 309 
Fernald, C. H., on gypsy moth, 253, 
402 
Fernald, H. T., 412, 422 
Fertilization, 147 
Fidonia, antennal sensilla, *95, 102 
Fielde, on ants, 331, 333, 334, 350, 
458, 460 
Filariasis, 305 
Filiform, *34 
Filippi’s glands, *84 
Finlay, 456 
Finn, on mimicry, 230; warning col- 
oration, 222, 450 
Fire-flies, 131 
Fischer, 449 
Fishes, insectivorous, 281 
Fitch, 403 
Flagellum, *34 
Filéas,. 109, *2n,5278 
Fletcher, 407 
Flight, mechanics of, 62 
Flogel, 425 
Fluted scale, 395, 406 
Follicles, 141, 143, *144 
Folsom, 413, 416 
Food, its effects on color, 196 
Food reservoir, 118, *119 
Forbes, H. O., 461 
Forbes, S. A., on corn root louse, 
3413; on economic entomologist, 
398; food of Carabide, 308; insec- 
