INDEX 



331 



Pseudacraea 'eurtjtus, lorm poggeoides, 250, 

 252, 254-5, 257, 262 

 form togersi, 249, 252, 253, 254-5, 263 

 form terra. 106, 245, 249, 251, 252-7, 

 263, 274-5 

 an unstable form, 264 

 perfection of mimicry, 251 

 flirting with hobleyi, 259 

 behaviour of, 239 

 form tlrikensis, 103, 114, 245, 247, 248-9, 

 250, 254, 257, 262, 274 

 a stable form, 264 

 kuenowi, 245, 248 

 lucretia, 104, 106, 114 



flight like that of Neptis, 105 

 poggei, flight of, 243 

 simulator, 242 

 Pseudocreobotra ocellata, 203, 311 

 Psychidae, evidence of insularity, 100, 106 

 (Puff-adder) (see BUis) 

 PuNNETT, Prof. R. C, on " Mimicry in 

 Butterflies," 231 

 on birds and butterflies, 235 

 on Mutation theory versus Darwinism, 



268-9 

 on Mendelian heredity and intermediates, 

 270-1 

 Python, 116, 188-9 

 source of food for G. palpaUs, 39 



Quail, 160 



(Eace, insular) (see Islands, faunal pecu- 

 liarities) 

 Rat, abundant on certain isles, 95, 112, 116 



Trypanosome of, 13, 18 

 Rails, 153 



Reedbuck and T. ffambiense, 27 

 Resuvu Islet, 97 

 Rhodesia, Trypanosomiasis in, 9 



Ps. eurytus scarce In, 245 

 Rhodogastria leucoptera, 210-1 

 Ehopalocampta chalybe, 103, 106, 114 



forestan, 106 

 Ridley, H. N., 283 

 Robertson, Miss, 26, 61 

 (Robin chat) (see Cossypha) 

 Roller, functions interchangeable with 

 Bee-eaters, 171 



absent on islands, 167 



eat Copridae, 218, 306 

 RuJiFUA Isle, 123-4, 183 



butterflies on, 125 



(Safari ant) (see Dorylus) 



Salamis, 103-6, 114 



SaliUHca egeria, 232 



Salivary glands, of Glossina, Trypanosomes 



in, 17, 26 

 Sallicidae, 228, 233 

 Salvia, 99. 105, 112, 119 

 (Sandpiper) (see Tringoides) 

 (Sand wasp) (see Fossor), 286 

 Sanga Isle, 101-3, 164, 214 



Glosntia absent from, 34, 102 



butterflies on, 125 

 Sarcodina, 11 

 Saturnidae, caterpillars of, 199, 201. 213 



terrifying markings of, 220 

 Satyrinae, 103, 125, 213 



attacked by birds, 225 



directive markings of, 208 



nuptial flight of, 225 

 Sealmicauda niveiplaga, 197 

 Sceliphron spirifex, 295-8 

 Scent, produced by male butterflies, 222-3 

 Schizorhis, 165 

 Schizotrypanum cruzi, 14 



Scoliidae, 12 J, 231, 287, 303 



evidence of insularity, 103 

 Scopus umliretla, 155-6 

 Scorpion, scarce on islands, 321 

 Sege Isle, 116 



butterflies on, 125 

 Segregation, 270, 272 

 (" Sekanyolya ") (see Ardea melanocephala), 



158 

 (" Sekoko ") (see Cuculm solitarius), 166 

 Selection, Natural, 196, 241, 262 



produces no more than is necessary, 



197, 202, 226-7 

 produces same effect by different 



means, 231 

 produces more detailed likeness than 



chance can, 234-5 

 originates nothine, 231 

 and the Mutation theory, 262, 268-9 

 of mimic relaxed in absence of model. 

 256-9, 262, 266, 273 



Sexual, 209, 221-6 

 SELOrs, F. C, 35, 236 

 Sematic colouration, 195 

 (" Semirindi ") (see Cormorant), 147 

 (" Semukutu ") (see Enyaliopsis), 313 

 " Semutundu," 194 

 Shelford, R. W. C, on flying snake, 189 



on mimetic spider, 227 



on Lycoid insects, 232 

 Shrike, 175-6 

 Shrimp, 320 



(" Siafu ") (see Dorylus) 

 SiDGWICK, A., 199 

 Siluridae, 141, 193-4 

 Silver, markings, 199, 319 

 Simuliidae, 80, 151 

 Simulium damnosum, 315 

 SiNDiRO Isle, 118, 183 

 Situtunga, 88, 91-2, 101, 117, 137-40 



and Trypanosomes, 15, 27-9, 41 



and G. palpalis, 28-9, 36, 61 



Meinertzhagen on, 139 



Speke on, 137-8 



swimming powers, 61 



Food of, 99 

 (Skipper) (see Hesperidae) 

 Sleeping Sickness, confined to tropical 

 Africa, 1 



symptoms of, 1-2 



closely allied to animal diseases, 2, 24-5 



earliest account of, 2-5 



enlarged glands in, 6 



first associated with Trypanosome, 6, 23 



spread of, 6-9 



Royal Society Commission on, 7, 23 



cause and carrier of, 7, 23-4 



checked by depopulation, 8 



in absence of G. palpalis, 9 



in W. Africa, 17 



eradication of, 61-5 

 Slow worm, 190 

 Slugs, 321 



as evidence of insularity, 103, 115 



attacked by Dorylus, 279 

 Snails, attacked bv Dorylus, 279 

 Snakes, 95-6, 116, 187-93 



danger of, 187 



evolution of poison of, 191-3 



as food of G. jmlpalis, 39, 188 

 Snipe, 152 



(" Sombabyuma ") (see Ciconia), 155 

 Spalgis pilos, 107 

 (Sparrow) (see Passer) 

 Speke, J. H., 67, 137, 139 

 Spheqidae, 286-7, 294-300 



enemies of, 302 



noise of, when working, 295, 298 



