ANALYTICAL INDEX 



in relation to shape of 



Rotation 

 earth, 8, 9. 



Rothschild and Jordan on per 

 saltum evolution, xvi. 



Rotifera derived from Chaetopod- 

 like ancestor, 27 ; in classification, 

 33- 



Roux, experiments of, on frog's 

 egg, 128-30. 



Royal Dublin Society, 12. 



Royal Irish Academy, Pro- 

 ceedings of, 314 n. 1. 



Royal Physical Society of Edin- 

 burgh, Proceedings of, 303. 



Royal Society, Philosophical 

 Transactions of, 150, 185, 262; 

 Proceedings of, 262, 314 n. 2. 



Royal Society of Edinburgh, 

 Proceedings of, 4 n. 3. 



rubi, Thecla, reduction of shadow 

 in, 301. 



rubripennis, Lygistopterus, mim- 

 icked by Lycomorpha latercula, 

 231. 



Rudimentary stalks and sockets of 

 scales in certain mimetic moths, 251, 

 365-6. 



Rugose corals in Palaeozoic, 28. 



rusina, Draconia, resemblance to 

 ' skeletonized ' leaf of, 302. 



Saccamina, an existing genus in 

 the Carboniferous, 27. 



Sagartia parasitica, 357. 



Sahara to Niger mouths, exclusive 

 occurrence of alcippus f. of L. chrys- 

 ippus from, 321, 364. 



Salamander, 130 n. 1. 



Salatura hegisippus, 373. 



Salatura plexippus (genutia), 373. 



salina, Artemia, experiments on, 



73, 74- 



Salisbury, Rhodesia, dorippus f. of 

 L- chrysippus at, 71 n. 1 ; ant-like 

 Locustid and models from, 257 n. 1 ; 

 attacks of birds on butterflies wit- 

 nessed at, 283, 284. 



Salisbury, the late Lord, objec- 

 tions to Natural Selection by, 2-4, 9, 

 10. 



Salix, Wichura's proof that Men- 

 del's principle is not followed by 

 hybrids of, xxxv n. 1. 



Salvin, O., on the sexual brands of 

 the Dismorphina, 240; on Ecuador 

 form of M. confusa, 266. 



463 



Salween R., below Shwegon, 

 Burma, butterflies attacked by birds 

 on, 289. 



sambucaria, Uropteryx, slight 

 cocoon of, 1 50 ; cryptic pupa of, 1 50 ; 

 variable protective resemblance 

 probable in pupa of, 1 50 n. 2. 



Sand (see also desert): protective 

 resemblance to, 298, 307, 321 ; allanti- 

 cryptic use of, 313. 



Sand-wasps, see Fossores. 



Sanders, Cora B., on Burchell's 

 Brazilian butterflies, 53 n. I ; on pupal 

 stage of V. urticae, 306. 



Sanger-Shepherd, illustrations of 

 mimicry prepared by, 272 n. 2. 



sangutflua, Amesia, with allied 

 Chalcosiine moths, rough Miillerian 

 mimics of blue Oriental Euploeas, 

 376 : see also 372. 



Sarangesa eliminata, 283. 



Sargasso Sea, 298. 



sarpedon, Papilio, eaten by bee- 

 eater, 288 ; captured by Microhierax 

 coerulescens, 289, 290. 



satis, Acraea, recent entrance into 

 Natal of, 52 n. I ; resemblance to 

 Papilio morania of, 52 n. 1. 



Satyrinae, Burchell's Brazilian, 53 

 n. 1 ; seasonal changes in, resemble 

 those of other sub-families, 207, 210, 

 2ii, 310, 311, 326; concealment of 

 eye-spots of, during prolonged rest, 

 210 ; eye-spots in wet season forms 

 of, 210, 21 1, 326 ; tilt or ' list ' of, 289, 

 300, 300 n. S ; Elymniinae often united 

 with, 353. 



Saw-flies (Tenthredinidae), larvae 

 of, mimicked by larvae of E. versi- 

 color, 238, 239, 239 n. 1 ; sudden 

 assumption of aposematic defence 

 by, 320. 



Scales, diverse modifications of, to 

 promote mimetic resemblance to 

 same transparent Ithomiine models, 

 263-6 ; mimicry attained by loss of, 

 251, 276, 365, 366 ; by transparency 

 of, 251, 266, 366; degeneracy in 

 lost scales greatest in best mimics of 

 wasps, &c, 365, 366 ; great size an 

 element in the loss of, 366 ; of Echis 

 and the production of sound by, 324. 



Scent brands of the male Euploeini, 

 334 n. 1 ; probable episematic use of, 

 in butterflies, 358, 358 n. I. 



Schmankewitsch, on Artemia 

 salina, 73, 74. 



