ANALYTICAL INDEX 



Cleonus sulcirosiris, 307. 



Climate (see also external 

 causes) : J. C. Prichard on adaptation 

 of human races to, 191 ; an ex- 

 planation why human races may not 

 be changed by, 192 ; on the influence 

 of, 187-92 ; hypothesis that mimicry 

 is caused by food, &c., and, 224 ; 

 influence of, on attacks of birds on 

 butterflies, 286. 



Close, Rev. M. H., on the age of 

 the earth, 12 n. i. 



Clytinae, as mimics of Hymeno- 

 ptera, 238, 251, 252, 348, 363; as 

 models for other Longicorns in 

 Borneo and Ceylon, 348, 349. 



Clytus arietis^ 238, 251, 252, 348, 



363- 



Coal, insects of, 35-8. 



coarctata, Hyas^ combined allo- 

 procryptic, allanticryptic, and 

 pseudepisematic colouring of, 314. 



Cobra, cryptic and aposematic 

 defence of, 324 ; intimidating attitude 

 of, 324, 325 ; advantage of intimida- 

 tion of, 324, 325. 



Cobra-like and other snakes 

 mimicked by caterpillars, 319, 326, 

 367, 367 n. 2, 368, 376. 



Coccystes caffer\ 283. 



Cockroaches, in early Palaeozoic, 

 30 ; of Commentry Carboniferous, 



36, -hi. 



Cocoon, Instinct of form- 

 ing, V. 157-60. 



Cocoon, formed prior to experience, 

 and Lamarckian interpretation there- 

 fore excluded, 117, 118, 157-60, 164, 

 164 n. 2 ; probably reasons for decline 

 of, 148 ; advantage of decline of, 148, 

 149 ; cryptic colouring of, in times of 

 stress, 148 ; colour adjustment of, in 

 Halias prasinana^ 149 ; concealed 

 on bark, 158, 159. 



Coelentera, in relation to classifica- 

 tion and evolution, 25, 26, 28, 30, 31. 



Coelomata, in relation to classifica- 

 tion and evolution, 25-8, 30, 31, 41, 



43- 



Coeno7iy}npha paifiphtlus, 210. 



coerulesce?is, Microhicrax, captur- 

 ing Papilio sarpedo7i, 290 ; butter- 

 flies' wings, &c., in nests of, 290, 291. 



Co-Existence of Palatable 

 Food implied by Aposematic 

 Defence, X. 317. 



Coincidence between colours 



411 



and Environment probahlv 

 caused by Local Natural Selfx- 

 TiON, X. 307, 308 : see also 308, 309, 



309 n. I, 310 n. r. 



Colacnis^ 'stink glands' of, 334 n. 2. 



Colacnis icl€sif>ht\ 334 n. 2. 



Cold, see external causes ; effect of, 

 on Hudson's Bay Lemming, 310. 



Coleoptera, see beetles. 



Coil as cdusti, 301. 



Coloration marquante et 

 Taches ocellees, 1897, C. Porlschin- 

 ski, 254, 369. 



Colour adjustment, see Adjustable 

 Protective Resemblance. 



Colour, danger of inferring discon- 

 tinuity from changes in, xvii. 



Colours of animals classified, 226 ; 

 sexual selection of bright, 379. 



Colours of Animals, E. B. Poul- 

 ton, 4, 150 n. 2, 210, 223, 226, 281, 

 326, 344, 367 n. 2. 



Colours of Animals : I, Bionom- 

 ics, Encycl. Brit., E. B. Poulion, 



293- 



Colours prohabia' Adjusted 

 TO Environment by Local 

 Natural Selection, X. 307, 308 : 

 see also 308, 309, 309 n. i, 310, 



310 n. I. 



Colours, Value of Bruiht, 

 Concealed during Rest, X. 303, 

 304 : see also 325. 



Colujnba palumhits^ S3, 84. 



Comb-making instinct, 164. 



Combination of procryptic and 

 mimetic colouring, chief ex;imj)les of, 

 in butterflies {Proto^onius and Elym- 

 uiinae), 350-4 : see also 324, 368. 



' Combination ' or * association ', 

 use of, contrasted with *grou|)', 293. 



Comma butterfly, 203-5. 



Commentry, fossil insects of, 



35-8. 



Common goose fertile uiih 



Chinese, 'ST). 



Common or Svncryptic Pko- 

 TECTivE Resemblance, X. 31:: 

 see also 359. 



Common Wakmng Colours, 

 Natural Selection the Cause 

 OF Mimicry and (Theories ok 

 Mimicry), Essay VII I, 220-70, Sec 

 also Essay IX, MiMlCRY AND 

 Natural Selection, 271-92. 



Common Warning or Synapo- 

 sematic Colours (MUlllrl\n 



