442 



INDEX 



Haldeman 's locust ( Bippiscus hal- 



demanii), 423. 

 Hancock's grouse locust (Tetrix 



lianoodki), 421. 

 Harlequin bug, 170-173. 

 Harris, on rose-ohafer, 219, 220. 

 Harvest ily, Dog-day (Cicada tibi- 



een), 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. 

 Heredity, 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 



platyrhinus), 298-300. 

 Holland, on Anthocharis genutia, 



84. 

 Homoptera cinquUfera moth, 100. 

 Honey bee and pennyroyal, 276; 



mimicked by drone fly, 132. 

 Hooded grouse locust (Faratettix 



cucullatus), 413, 414, 419. 

 Hoosier locust (Paroxya hoosier), 



420. 

 Hornig, on eggs of Anthrocharis 



genutia, 84. 

 Horse chestnut, grouping attractive 



to insects, 32. 

 Horse-fly (Tabanus), black, 215. 

 Horseweed (Leptilon canadense), 



ideal environment for insects, 



290, 362, 379, 380. 

 House cricket (Gryllus domesticus), 



426. 

 Howard, on wasps, 214. 

 Huber, on judgment or reason in 



animals, 11. 

 Humieolous 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. 

 Hygrogeoeolous Orthoptera, 419-421. 

 Hylatjolous Orthoptera, 429. 

 Hylophitesj 433. 



Ichneumon fly (Ophion macrurum), 

 parasite on polyphemus, 62, 114; 

 Thalessa, instinct, 13. 



Indiana grouse locust (Neotettix 

 hancooki), 419. 



Indigo bird, 260-262. 



Inheritance, 9, 10. 



Injurious locust ( Sohistocerca 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; anthpophi- 

 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 Thread-legged, bug 

 (Emesa iongipes), protective re- 

 semblance, 105, 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. 

 Jennings, on animal behavior, 167. 

 Jordan, on mimicry, 119; on natural 



selection, 23; on variation, 17. 

 Jug-making wasp (Eumenes frater- 



nus), 206-209, 212. 

 Jumping mouse (Zappus hudson- 



ius), nocturnal habits of, 306. 

 Jumping spider (Fhidippus mosi- 



tans), 192-194. 

 Jumping tree cricket (Orodhares 



saltator), 429. 



