442 



INDEX 



Haldeman's locust (Hippiscus hal- 



demanii), 423. 

 Hancock's grouse locust (Tetrix 



hancocki), 421. 

 Harlequin bug, 170-173. 

 Harris, on rose-chafer, 219, 220. 

 Harvest fly. Dog-day (Cicada tihi- 



cenj, 215-218. 

 Harvest spider (Argiope), 297. 

 Hawk, 244, 247, 258, 259, 314. 

 Hawk moth, 21 ; terrifying mark- 

 ings, 148. 

 Hazel (Corylus americana), 49. 

 Heath, definition of, 433. 

 Hedge row, definition of, 432. 

 Heliophytia, 432. 

 Hemiptera, see Bugs. 

 Hemlock, water, 280. 

 Hereditj', Castle on basis of, 9; a 



factor in evolution, 17. 

 Hermit thrush, as a selective factor, 



311-314. 

 Herrick, on diet of birds, 124, 128, 



216. 

 Hill, definition of, 432. 

 Hinds, on effect of rain on insects, 



286. 

 Hog-nose or Puff-adder (Heterodon 



phityrhinus), 298-300. 

 Holland, on Anthocharis genutia, 



84. 

 Eomoptera cinqulifera moth, 100. 

 Honey bee and pennyroyal, 276; 



mimicked by drone fly, 132. 

 Hooded grouse locust (Paratettix 



cuvuUatus), 413, 414, 419. 

 Hoosicr locust (Paroxya hoosier), 



420. 

 Hornig, on eggs of Anthrocharis 



genvtia, 84. 

 Horse chestnut, grouping attractive 



to insects, 32. 

 Horse-fly (Tabanns), black. 215. 

 Horseweed (Lcptilon canadense), 



ideal environment for insects, 



290, 362. 379, 380. 

 House cricket (Gryllus domesticns), 



426. 

 Howard, on wasps, 214. 

 Huber, on judgment or reason in 



animals, 11. 

 Humicolous Orthoptera, 421-423. 

 Humming-bird, bill and tongue, 



modification of. 28, 41-46; habits, 



21, 33, 42-48. ,56-58, 310. 

 Humus, definition of. 433. 

 Hybrids, germ cells in, 10, 413. 



Hydrophitic plant societies, defini- 

 tion of, 277. 

 Hydrophytia, 430, 431, 433. 

 Hygrogeocolous Orthoptera, 419-421. 

 Hylacolous Orthoptera, 429. 

 Hylophites, 433. 



Ichneumon fly (Ophion macrurum), 

 parasite on polyphemus, 62, 114; 

 Thalessa, instinct, 13. 



Indiana grouse locust (Neotettix 

 hancocki), 419. 



Indigo bird, 260-262. 



Inheritance, 9, 10. 



Injurious locust ( Schistocerca dam- 

 nifica), 422. 



Insect trap, of ant-lion; 178, 179; 

 in sundew, 21, 296. 



Insects, adaptation, examples of, 

 27, 30, 40, 54, 64, 82, 94, 277, 

 338, 399, 404; affected by phys- 

 ical forces, 284-288; anthrophi- 

 lian, 31, 321; aquatic, 278-284; 

 modification by birds, 311, 312; 

 nocturnal, 162, 301-303, 377, 378, 

 388-392; parasitic, 114; parts of 

 body, 169; pasture and meadow 

 in August, 288-292 ; sense organs, 

 168, 169; *' shamming dead," 80, 

 82. 



Instinct, animal, 11, 82, 167-169, 

 229; Ambush bug, 170-173; Sphex 

 wasp, 167; Spider, 191. 



Instinct and evolution, 11-13. 



Intelligence, origin of, 11. 



Invisible, or Tliread-legged, bug 

 (Emcsa longipes), protective re- 

 semblance, 10.5, 106. 



lo moth, 160-164. 



Isolation, as a factor in natural 

 selection, 24, 320; Komanes' defi- 

 nition of, 27, 28. 



JOHANNSEN, experiments to show 



variations, 18, 19. 

 .Tennings, on animal behavior, 167. 

 .Tordan, on mimicry, 119; on natural 



selection, 23; on variation, 17. 

 Jug-making wasp (Eumenes frater^ 



nus), 206-209. 212. 

 Jumping mouse (Zapptis hudson- 



ins), nocturnal habits of, 306. 

 Jumping spider (Phidippus mosi- 



tans), 192-194. 

 Jumping tree cricket (Orochares 



saltator), 429. 



