438 



INDEX 



Chipmunk, 240. 



Chrysis coerulans (parasite), 208. 



Cicada, or Dog-day harvest fly (Ci- 

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



Cicada-killer (Sphecius spheciosus), 

 216-218. 



Classification of animals, 3-6. 



Clear-wing locust (Camnula pellu- 

 eida), 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 oaulatis), 301- 

 303! 



Cliff, definition of, 433. 



Clouded locust ( Encoptolophus sor- 

 didus), 330, 372-374, 421. 



Qover, 32, 145, 318. 



Cockerell, on evolution of galls, 53. 



Cockroach, habitats, 422, 425, 426 

 American (Feriplanata ameri 

 cana), 426; Australian (Feri- 

 planata australasia) , 426; Orien 

 tal (Blatta orientalis), 416 

 426 ; Pennsylvania (Ischnop 

 tera pennsylvanica) , 416-418, 425, 



Cocoon, of Anephares ruftpes, 176. 

 177; Ant-Hon, 181; Luna moth 

 60, 62 ; Polyphemus mcth, 60, ( 

 Puss-moth, 154, 156; Saddle-back 

 larva?, 144; of Sehizura, 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 im.pu- 

 dicus), 422. 



Common walking-stick (Diapherom- 

 ara femorata), 425. 



Competition of plants, 322, 323. 



CompositsB, grouping of, attractive 

 to insects, 32. 



Compositicolous Orthoptera, 427, 

 428. 



Comstock, on the bumble bee, 306. 



Cone-head grasshopper (Conoceph- 

 alus), 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 (Eippiscus 

 tuberculatus), 423. 



Cordulegaster obliguus, 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 lif-e, 320, 321. 



Crab-spider (Misumena vatia), hab- 

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



Crane fly (Tipula), 801. 



Creek, definition of, 430. 



Crescent spot butterfly (Phyciodes 

 tharos), 41. 



Cresphontes caterpillar, fork-like 

 scent organs, 150-152; resem- 

 blance to bird droppings, 150-152. 



Crested grouse locust (Nomotettix 

 aompressus), 413, 421. 



Crevice, definition of, 433. 



Crickets, habitat based on their 

 egg-laying sites, 421, 423-426, 

 428, 429; Varieties: Ameri- 

 can field (Gryllus americanus), 

 423; Beautiful crimson (Phyllos- 

 cirtus pulchellus), 421 ; Black sid- 

 ed camel (CeuthopMlus latens), 

 424; Blatchley's camel. (Ceu- 

 thopMlus ilatchleyi) , 423; Broad 

 winged shrub (Oecanthus latipen- 

 nis), 428; Cave camel (Ceuthoph- 

 ihis stygius), 425; Cuban ground 

 (Nemobius oubensis), 423; Pour- 

 spotted shrub (Oecanthus quad- 

 ripunctatus), 326, 328, 429; 

 Ground camel (CeuthopMlus ter- 

 restris), 423; House (Gryllus do- 

 mesticus), 426; Jumping tree 

 (Orochares saltator), 429; Larger 

 burrowing (Tridactylus apioalis), 

 425; Marsh ground (Nemobius 

 palustris), 421; Minute burrow- 

 ing (Ellipes minuta), 425; 

 Northern mole ( Gryllotalpa hore- 

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

 Pergande 's ant-loving (Myrmi- 

 cophila pergandei), 426; Penn- 

 sylvania field (Gryllus pennsylva- 

 nicus), 326, 328, 386, 387, 423; 

 Sand-loving field (Gryllus arena- 

 ceus), 424; Saussure's lesser 

 (Miogryllus saussurei), 423; 

 Scudder '.s ground (Nemobius 



