INDEX 



333 



Variations, heritable fluctuations, 241, 

 268, 271-2 

 MutationB, 240-1, 268-9, 270-2 

 of mimic in absence of model, 256-9, 



262, 267, 273 

 seasonal, 201-2 

 Transitional forms, in P. dardanus, 

 269-71 

 absent in P. pohjtes, 269 

 in Ps. eurytus, proportions of, in 



different localities, 265 

 survive in absence of models (see Ps. 



eurytus), 266, 273 

 and Mutation theory, 268-271 

 Vertigo, 322 



Victoria Nyan.ta, 67, 69-71 

 climate of, 72 

 fall in level of, 69 

 signs of weather on, 76-80 

 sounds of life on, 80-81 

 storms on, 73-5, 82-3 

 Vinago, 159 

 Vitrina, 321 

 Viverridae, 141-2 

 Vulture, absent from islands, 164 



Wagtail, 121 



attacks on butterflies, 111, 208, 238 

 Waitwe Isle, 116, 117 



faunal characteristics, 116 



Glossina on, 117 

 (" Waka ") (see Paltothyreus), 281 

 Wallace, 195 



on struggle for existence, 218 

 Warbler, 102, 178 

 Warning colours, 195, 206, 230 

 Wasps, 97, 108, 207, 284-6 



prey of Bee-eater, 172 



syn-aposematic, 230, 232 

 Waterbuck and T. gambiense, 27 

 Water lilies, 69, 101 



(Water scorpion) (see Nepa) 

 Waterspout, 75 

 Wavuziwa Isle, 115-6 



faunal characteristics, 116 



Olossina on, 115 



butterflies on, 125 

 Weather prophets, 77-80 

 Weaver birds, 102-3, 108, 111-3, 115, 



117, 120-2, 176 

 Weevil, 196 

 Wema Isle, 68, 113-5 



Olossina on, 51, 57, 114 



butterflies on, 114, 125 



monkeys on, 131 

 West Africa, Ps. eurytus in, 245, 247-8, 



251, 254, 262 

 Wiggins, C. a., collection of Ps. eurytus 



255, 259 

 Wind (see also storms), 76, 90 

 (" Wonzi ") (see Spizaetus), 164 

 (Wood hoopoe (see Irrisorinae) 

 Woodlice, 321 

 Woodpecker, 78 

 Wood swallow, 236 

 Woolly bear, 213 



Xenetomorpha carpenteri, 228 

 Xylocopidae, 303 



Yempata Isle, 117-8 

 accessory isle, 117 

 Glossina on, 32, 118 

 monkeys on, 131 



Zeltus antifaunus, 114 

 ZiGUNGA Isle, 113, 116 



faunal characteristics, 113 

 ZiRO Isle, 108-9, 141 

 Zonocerus elegans, 215 

 Zygaenidae, 213, 230, 232 



