438 



INDEX 



Chipmunk, 240. 



Chrysis coerulans (parasite), 208. 



Cicada, or Dog-dav harvest fly (Ci- 

 cada tibicen), 59, 215-218, 289. 



Cicada- killer (Sphecius spheciosus), 

 216-218. 



Classification of animals, 3-6. 



Clear-wing locust (Camnnla pellu- 

 cida), characteristics, 131, 326, 

 327, 364-367; habitat, 327, 421. 



Clements, on dependencies and hab- 

 itats of animals, 320, 321, 433; on 

 competition in plants, 322, 323; 

 on experiments in evolution, 272. 



Click beetle (Alaus oculatis), 301- 

 3U3. 



Cliff, definition of, 433. 



Clouded locust (Encoptolophus sor- 

 didus), 330, 372-374, 421. 



aover, 32, 14.5, 318. 



Cockerell, on evolution of galls, 53. 



Cockroach, habitats, 422, 425, 426; 

 American (Periplanata ameri- 

 cana), 426; Australian (Peri- 

 planata australasia ) , 426; Orien- 

 tal (Blatta orifntalis), 416, 

 426; Pennsylvania (Ischnop- 

 tera pennsyhnnica), 416-418, 425. 



Cocoon, of Anephans rufipes, 176, 

 177; Ant-lion, 181; Luna moth, 

 60, 62 ; Polyphemus mc th, 60, 62 ; 

 Puss-moth, "l54, 156; Saddle-back 

 larva?, 144; of Schizura, 114. 



Coleoptera, see Beetles. 



Color, theory of, 118. 



Color protection, examples of, 28, 

 67-72. 137-164, 396-398, 400-405. 



Color variation, experiments in Or- 

 thoptera, 344-347. 



Columbine (Aquilegia), fertiliza- 

 tion of, 21. 



Common locust (Melanoplus impu- 

 diciis), 422. 



Common walking-stick (Diapherom- 

 ora fcmorata), 425. 



Competition of plants, 322, 323. 



Composita^, grouping of, attractive 

 to insects, 32. 



Compositicolous Orthoptera, 427, 

 428. 



Comstock, on the bumble bee, 306. 



Cone-head grasshopper (Conoceph- 

 alits), characteristics, 200, 337- 

 340; habitat. 427; protective col- 

 oring, 28; stridulation, 388, 392. 



Conservation, 272. 



Cope, theory of origin of species, 18. 



Copse, definition of, 431. 



Coral-winged locust (Hippiscus 

 tuherculatus), 423. 



Cordulegaster obliquus, 284. 



Correlation, law of, 159. 



Cosmopolitan, or Painted lady, or 

 Thistle butterfly, 139-142. 



Courtship, cricket, 383, 384; locust, 

 342-344; drone fly, 215. 



Cowbird, behavior, 243. 



Cowles, on successive stages of 

 plant life, 320, 321. 



Crab-spider (Misumena vatia), hab- 

 its, 170, 172, 173, 183-186. 



Crane fly (Tipula), 301. 



Creek, definition of, 430. 



Crescent spot butterfiy (Phyciodes 

 tharos), 41. 



Cresphontes caterpillar, fork-like 

 scent organs, 150-152; resem- 

 blance to bird droppings, 150-152. 



Crested grouse locust (Noviotettix 

 coDipressus), 413, 421. 



Crevice, definition of, 433. 



Crickets, habitat based on their 

 egg-laying sites. 421, 423-426, 

 428, 429; Varieties: Ameri- 

 can field (Gryllus awericanus), 

 423; Beautiful crimson (Phyllos- 

 cirtus pulchellus), 421 ; Black sid- 

 ed camel (Ceuthophihts latens), 

 424; Blatchley's camel. (Ceu- 

 thophihts blatchleyi), 423; Broad 

 winged shrub (Oecaiithiis latipen- 

 nis), 428; Cave camel (Ceuthoph- 

 iltis stypius), 425; Cuban ground 

 (Newobius cnbensis), 423; Four- 

 spotted shrub (Oecanthus quad- 

 ripunctatus), 326, 328, 429; 

 Ground camel (CeuthophiJus ter- 

 restris), 423; House (GryUus do- 

 vjesticus), 426; Jumping tree 

 (Orochares saltator), 429; Larger 

 burrowing (Tridaetylus apicalis), 

 425; Marsh ground (Xemobius 

 palustris), 421; ]Minute burrow- 

 ing (EUipes miiutta), 425; 

 Northern mole (Gn/llotalpa bore- 

 alis), 28, 302, 376-378, 390, 425; 

 Pergande's ant-loving (Myrmi- 

 cophila perqandei), 426; Penn- 

 sylvania field (Grylhis pennsylva- 

 nietts), 326, 328, 3S6, 387, 423; 

 Sand-loving field (Gryllus arena- 

 ceus), 424; Saussure's lesser 

 (Miogryllus sausstirei), 423; 

 Scudder's ground (Xemobius 



