ANALYTICAL INDEX 



419 



dominicanus, f. ofAmaurt'sm'avtus, 

 a dominant model in E. Africa, 336 ; 

 replaced by type f. of niavius at 

 V. Nyanza, 68, 69, 338 ; correspond- 

 ing changes in Papilionine and 

 Nymphaline mimics, 338 ; mimicked 

 by hippocoon female f. of E. and S. 

 Pap. dardanus, 374, 375 ; and 

 roughly by the trimeni female f. of 

 two sub-sp. of Pap. dardanus, 374 

 n. 2. 



domunciila, Suberites, carried by 

 Pagurus cuanensis, 357. 



Dorfmeister on seasonal changes 

 of Lepidoptera, 311. 



dorippus (= klugii), f. of Limnas 

 chrysippus, distribution of, 70, 71 ; 

 suggested interpretation of, as pro- 

 cryptic adaptation to desert, 321, 

 321 n. i. 



Dormouse, value of tail of, 325. 



doubledayaria, a black mutation 

 of A. betularia, 309. 



Draconia rusina, 302. 



Dragon-flies, great size of Car- 

 boniferous, 1 8, 37 ; attacked by bee- 

 eaters, 287 ; wings of, in nest of 

 Microhierax, 290, 291 ; attacking 

 specially defended insects, 318. 



dravidarum, Papilio, mimicking 

 Crastia core, 372. 



Driesch, experiments of, on egg of 

 Sea-urchin, 130. 



Drone-fly, see Eristalis, 243-4. 



Drongo capturing butterflies, 283, 

 284 ; capturing and rejecting dis- 

 tasteful moths, 284. 



Drurya, see Papilio, 366. 



Dry season a time of special stress, 

 148, 208-11, 311, 317, 320, 326 ; form 

 of butterflies' wings in, 206, 207, 310, 

 311 ; butterflies of, especially well 

 concealed, 207-11; cryptic forms of 

 Precis in, 208, 320, 339-41 ; butter- 

 flies of, prone to hybernate, 209 ; 

 more alert and active, 209; life of 

 the, 209 ; eye-spots withheld in, 210, 

 211, 326; warning colours less 

 developed in, 317; concealment 

 necessary in the, 320 ; the desert 

 a permanent, 321. 



Dryness, see External Causes. 



Dime, near Heligoland, colour of 

 grasshopper in, 307. 



Durban, Natal, 52 n. I, 71 n. I, 

 72, 72 n. i, 283. 



Dynamic Conditions, rapid colour 



adjustment a response to, 304, 305 ; 

 syntechnic resemblance caused by 

 similarity in, 312. 



Ears and tails, mutilations of, not 

 hereditary, 180, 181. 

 EARTH, AGE OF THE, Essay I, 



1-45- 



Earth, changing shape of, 8 ; rota- 

 tion and shape of, 8, 9 ; cooling of, 

 9-13 ; conductivity in interior of, 

 10-13 ; higher density of interior of, 

 II ; protective (procryptic) resem- 

 blance to colour of, 155, 298, 307, 318, 

 323 ; allanticryptic use of, by Cerato- 

 phrys, 313. 



Earthworms, 27. 



East Africa, see Africa East. 



East Brazil, see Brazil East. 



Eastern Origin of the Celtic 

 Nations, J. C. Prichard, 173. 



echeria and albimaculata, Amaii- 

 rts, Natal mimics of, in Hope 

 Department, 249 ; Western Amanris 

 mimicked by, 335, 337; dominant 

 models in E. Africa, 336 ; mimicked 

 by cenea female f. of three sub-sp. of 

 P. dardanus (merope], 337, 338, 355, 

 374 ; by female of Pap. echerioides, 



375- 



echerioides, Papilio, female of, 

 mimicking Amauris albimaculata 

 and echeria, 375. 



Echinoderm (Echinus), Driesch's 

 experiments on egg of, 1 30. 



Echinoderma, 25 ; small advance 

 in geological time of, 28 ; of early 

 Palaeozoic, 30 ; early records of all 

 except Holothurians, 43 ; earliest 

 forms of, not primitive, 43 ; classes 

 of, in Cambrian, 43. 



Echinoids in early Palaeozoic, 30. 



Echis carinata, 324. 



Ecuador, Bolivia, and Peru, colours 

 of the chief Ithomiine-centred com- 

 bination in, 351. 



Ecuador, form of Methona confusa 

 and Pierine mimic in, 265, 266. 



Edinburgh, J. C. Prichard an M.D. 



of, 173- 



Edinburgh Review, 56, 66. 



'Educability ' a hereditary congeni- 

 tal character, 165 ; as opposed to 

 instinct, 165, 166. 



Education, results of, not here- 

 ditary, 136, 165, 166-7 ; value of 



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