LIST OF FIGURES XV 



FIG. PAGE 



58. Part of the Malpighian tubule of an Anopheles claviger, 



infected with the embryos of Filaria immitis . . 221 



59. Tabanus kingi $ ........ 227 



60. A rock at Khor Arbat, Anglo-Egyptian Sudan, shewing 



sites selected bv, Tabanus kingi for ovipositing . . 228 



61. Egg-mass and mature larva of Tabanus kingi . . . . 229 



62. Comparative morphology of the proboscis of Glossina (I), 



Melophagus (II) and Stomoxys (III) . . . . 244 



63. Wing of Glossina palpalis to shew the venation . . 245 



64. Gravid uterus of G. palpalis, containing a larva at an ad- 



vanced stage of development . . .. . . 246 



65. Glossina palpalis. Photographs shewing the flies in a 



position of rest . . . . . . . 257 



66. Internal anatomy of Glossina palpalis . . . . 259 



67. View on River Gambia to shew a typical haunt of Glossina 



palpalis , . . . . . . . . . ' 261 



68. Glossina palpalis in the act of feeding , . . . 264 



69. Glossina palpalis. Female in the act of parturition . . 266 



70. Freshly laid larva of G. palpalis shewing the changes in 



the body form . . . , . . . . 267 



71. G. palpalis. Puparia before and after the escape of the 



imago . . . i . . . , .. 268 



72. Glossina morsitans. Dorsal view of female . '."' 276 



73. Path through thin deciduous bush, to shew a typical haunt 



of G. morsitans . . . ..... 279 



74. Base of a tree in Nyasaland shewing one of the positions 



in which the pupae of G. morsitans may be found . . 284 



75. Diagram of the life-cycle of Trypanosoma gambiense . . 312 



76. Transverse section (semi-diagrammatic) of the proboscis 



of an infected Glossina . . . . . . 314 



77. Culture of Trypanosoma pecaudi, from the intestine of 



G. palpalis . . . . ' . . . 334 



78. Culture of Trypanosoma congolense from the intestine of 



G. palpalis . ... . . . 351 



79. Trypanosoma simice. Successive stages in the division . 354 



80. Trypanosoma simice. Large multinucleate form . . 354 



81. Wing venation of Stomoxys calcitrans . . . . 356 



82. Side view of head of Stable-fly. A, proboscis in resting 



position ; B, proboscis extended .... 356 



83. Stable-fly, Stomoxys calcitrans ; ; . . . ',. ; < . 357 



84. Stomoxys calcitrans. Eggs . . , . . 359 



85. Lynchia maura $ . . . . . . . 376 



86. Hippobosca rufipes . . . . . . . . 378 



87. Developmental cycle of H&moproteus columbce . . 381 



88. Trypanosoma theileri. A, small crithidial form; B, large 



individual from blood of cow ..... 385 



