INDEX 



445 



Meadow green locust (Hesperotettix 

 pratensis), 420. 



Meadow lark, 274. 



Meadow 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 (Asclepias 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 

 ery thro (J aster), for aquarium, 284, 

 285. 



Mint (Monarda punctata), adapta- 

 tion of, for bees, 297. 



Minute burrowing cricket (Ellipes 

 minuta), 425. 



Mites, infest the Phoebe, 234. 



Mole cricket (Gryllotalpa horealia), 

 habitat, 378, 425; habits, 376- 

 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 (Pholus 

 achemon), 156-159; Acontia eras- 

 triodes, 94-98 ; Acorn (Holcocera 

 glanduJella), 175; Automeris io, 

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

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

 148; Homoptera cinqulifera, 100; 

 Luna (Tropoea luna), 60, 62; 

 Ocneria dispar, 53; Plnsia sim- 

 plex, 132; Polyphemus (TeJea 

 polypTiemus ) , 60-64; Puss (Cerera 

 multiscripta) , 155; Ehodophora 

 florida, 182, 185; Sphinx (Celerio 

 lineata), 156-159, 306; Stenoma 

 schlaegeri, 94-98. 



Mottled sand locust (Spharagemon 

 wyomingianum), 326, 327, 330, 

 359-362, 364, 423, 424. 



Mourning cloak butterfly, 344. 



Mourning dove, 243. 



Mouse ear (Sisymbrium thalianum), 

 84, 85. 



Mouse, Jumping (Zappus hudson- 

 ius), 306; White-footed, habits 

 of, 250, 251, 306. 



Mud-dauber, white-footed, habits of, 

 209-214. 



Mulberry tree, 34, 308, 309, 328. 



Mullein (Verbascum), fertilization 

 of, by insects, 130-133. 



Miiller, 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. 



Nabours, 413, 414. 



Nageli, theory of the origin of spe- 

 cies, IS. 



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 

 (Conocephalus nebrascensis), 427. 



Nebraska locust (Phoetaliotes ne- 

 brascensis), 420. 



Need ham, on the Cordulegaster 

 nymphs, 284. 



Nemobins fasciatus, 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. 



