INDEX 



445 



Meadow green locust (Hesperotettix 

 pratensis), 420. 



Meadow lark, 274. 



MJeadow thicket, definition of, 431. 



Measuring worm (Geometrina), 93, 

 94, 138, 293. 



Mendel, principle of hybrid germ 

 cells, 10. 



Merriam, on habitats, 318. 



Mesophytia, 277, 324, 431, 432. 



Midges, 284. 



Migratory locust, 415, 416. 



Milkweed, associated red beetle, 36- 

 39; pods, 58; seeds, dispersion of, 

 28; Swamp (Asolepias incarnata), 

 36-39, 280. 



Milkweed beetle (Tetraopes), 36, 

 304. 



Mimicry, compared with protective 

 resemblance, 20, 68 ; examples of, 

 107, 115-133; 160-164, 344. 



Minnows, red-bellied (Chrosomus 

 erythrogaster), for aquarium, 284, 

 285. 



Mint (Monarda punctata), adapta- 

 tion of, for bees, 297. 



Minute burrowing cricket (EUipes 

 minuta), 425. 



Mites, infest the Phoebe, 234. 



Mole cricket (Gryllotalpa iorealis), 

 habitat, 378, 425; habits, 37o- 

 378; legs of, example of adapta- 

 tion, 28; night flying, 302; stri- 

 dulation, 376-378, 390. 



Mole, garden, 28. 



Monarch butterfly (Anosia plexip- 

 pus), mimicry, 119, 126, 351. 



Moor, definition of, 433. 



Morgan, on collecting and recording 

 observations on Nature, 271. 



Morse 's locust (Melanoplus morsei), 

 422. 



Moths, Achemon sphinx (Fholus 

 acheinon), 156-159; Acontia eras- 

 triodes, 94-98; Acorn (Eolcocera 

 glandulella), 175; Automeris io, 

 160-164; Catoeala, 99, 100; Da- 

 tana, 97, 98, 193, 194; Hawk, 21, 

 148; Somoptera cinquUfera, 100; 

 Luna (Tropoea luna), 60, 62; 

 Ocneria dispar, 53; Flusia sim- 

 plex, 132; Polyphemus (Telea 

 polyphemus), 60-64; Puss (Cerera 

 multiscripta) , 155; Rhodophora 

 florida, 182, 185; Sphinx (Celerio 

 lineata), 156-159, 306; Stenoma 

 schlaegeri, 94-98. 



Mottled sand locust (Spharagemon 

 wyomingumum) , 326, 327, 330, 

 359-362, 364, 423, 424. 



Mourning cloak butterfly, 344. 



Mourning dove, 243. 



Mouse ear (Sisymbrium tfialianum), 

 84, 85. 



Mouse, Jumping (Zappus hwdson- 

 ius), 306; White-footed, habits 

 of, 250, 251, 306. 



Mud-daub^r, white-footed, habits of, 

 209-214. 



Mulberry tree, 34, 308, 309, 328. 



Mullein (Verbascum), fertilization 

 of, by insects, 130-133. 



Muller, on adaptation of flowers to 

 insects, 31, 34, 38, 43; on cross- 

 fertilization of mullein, 132. 



" Miillerian groups," 118. 



Mutability, specific, due to variation, 

 10. 



Mutants, definition of, 272. 



Mutations, frequency of, 5 ; in prim- 

 rose, Whitman on DeVries' view 

 of, 13, 14; Quetelet's law of, 15. 



Myrmecolous Orthoptera, 426. 



NabOUkS, 413, 414. 

 Nageli, theory of the origin of spe- 

 cies, 18. 

 Narrow wing locust (Melanoplus 



augustipennis), 326, 327, 330, 424. 

 Natural selection, and evolution, 3- 



24; Walking-stick argument for, 



82. 

 Nature study, value of, 271-314. 

 Nebraska cone-head grasshopper 



(Gonocephalus nebrascensis), 427. 

 Nebraska locust (Phoetaliotes ne- 



brascensis), 420. 

 Needham, on the Cordulegaster 



nymphs, 284. 

 Nemohius fasoiatus, 302. 

 Nervous system of insects, 169. 

 Nest, of Baltimore oriole, 222, 242, 



243, 252-254 ; Castle-building 

 spider; 187-192; Chewink, or 

 Towhee, 264 ; Field sparrows, 243, 



244, 266, 310; Goldfinch, 227-229; 

 Jug-making wasp, 206-209 ; Jump- 

 ing spider, 192; Mourning dove, 

 243; Phoebe, 232-234; Eed-eyed 

 vireo, 244; Eobin, 262; Sphex 

 wasp, 195-201 ; Whip-poor-will, 

 247, 248; White-footed mud- 

 dauber, 209-214; Wren, 248, 

 249, 251. 



