INDEX 



447 



Pergande 's ant-loving cricket (Myr- 



micophila pergandei, 426. 

 Petricolous Orthoptera, 424. 

 Phaenotypes (false types), of varia- 

 tion groups, 19. 

 Phoebe, habits, 128, 232-234, 240, 

 241. 



Phylogeny, or descent, 6 ; in pigeons, 

 16, 17. 



Phytodyte?, definition of, 324; habi- 

 tats and egg-laying sites, 326, 

 426-429. 



Phytophilous, 356. 



Pictet, experiments on moths, 63. 



Pigeons, domestic, 8 ; experiments 

 on, by Whitman, 16; passenger, 

 29. 



Pistillated katydid (Scudderia pis- 

 tellata), 333, 334, 427. 



Plains, definition of, 432. 



Plant societies: Heliophytia, 432; 

 Hydrophytia, 430, 431; Mesophy- 

 tia, 431, 432; Xerophytia, 431, 

 432. 



Plants, adaptation, examples of, 20, 

 27-64, 297; dispersion, 317, 318; 

 competition of, 322, 323; habitat, 

 318-324; insectivorous, 296; pas- 

 ture and meadow in August, 290- 

 292 ; sequence of, 56, 322. 



Plum tree, antiquity of, 30. 



Plusia simplex moth, 132. 



Poison ivy, drupes of, 29. 



Poisonous fruits, 29. 



Pollination of basswood, 30-36; but- 

 terfly weed, 40, 41 ; flowers by 

 birds, 42-48 ; flowers by syrphus 

 flies, 130-133; milkweed, *36-40; 

 primrose by daddy-long-legs, 296. 



" Polygon, frequency," 19. 



Polyphagous habits, 62, 63, 86, 140, 

 146. 



Polyphemus moth (Telea polyphe- 

 mus), 60-64. 



Pond, definition of, 430. 



Pond life, 278-283, 295. 



Potter wasp, see Jug-making wasp. 



Poulton on coloration of animals, 

 68, 69. 71, 100; on habitat of 

 caterpillars, 94; on mimicrv, 117- 

 119, 126, 128; on terrifying 

 markings, 148. 



Prairie, definition of, 432. 



Praying mantis, 429. 



Preyer on " shamming dead " of 

 insects, 80. 



Prickly pear cactus (Opuntia humi- 

 fusa), habitat, 300. 



Primrose, evening, De Vries' ex- 

 periments on, 13, 14; as a spider 

 trap, 182-186; Yellow (Onagra 

 rhomhipetala), in Indiana dunes, 

 295, 296. 



Proboscis of ambush bug, 170-172. 



Prosopis, pollen feeding bee, 132. 



Protective coloring, striking exam- 

 ples of, 137-164; of Acridians, 

 412; of Ambush bug, 172; of 

 Quaker locust, 396-398; of Short- 

 horned locust, 400-404; Tiger 

 swallow-tail butterfly larva, re- 

 semblance to snakes and lizards, 

 148. 



Protective devices, poisonous excre- 

 tion of toad, 259; in caterpillars, 

 137-139, 150, 151. 



Protective resemblance, striking ex- 

 amples of, 67-114, 160-164; dif- 

 fers from mimicry, 20 ; Cresphon- 

 tes caterpillar, example of, 150- 

 152; Striped meadow cricket, ex- 

 ample of, 380. 



Puccoon in dunes, 298. 



Puff-adder (Heterodon platyrhinus), 

 298-300. 



Puss moth caterpillar (Cerura multi- 

 scripta), 150, 153-156. 



Quaker or Sulphur-winged locust 

 (Arphia sulphurea), 326, 330, 

 395-398, 413, 421. 



Quetelet's law, 15, 18. 



R.\ix, its effects on organic life, 

 178, 286, 288-290. 



" Eat tail " larva, 132. 



Ravine, definition of, 431. 



Reason, definition of, 167; in ani- 

 mals, 11, 169. 



Red-bellied minnow, 284, 285. 



Red-eyed vireo, 244, 245. 



Red-headed woodpecker, 239, 241, 

 248. 



Red-legged Anephares (Anephares 

 nifipes), new species, 176, 177. 



Red-legged locust (Melanoplus fe- 

 mur-rubrum), 326, 327, 330, 422. 



Reflex action, 11, 169. 



Reversion, definition of, and exam- 

 ple. 10. 



Shodophora fiorida moth, 182, 185, 



