List of Illustrations 



FIGURE PAGE 



42-43. A. brumpti, capitulum of $ , ventral and lateral aspects . . 31 



44-47. A. brumpti, digit, tarsi I and IV, details of integument . . 32 



48. A. vespertilionis $ , venter 35 



49. A. vespertilionis, detail of peculiar structure on venter . . 36 

 50-51. A. vespertilionis, first and second stage nymphs .... 36 

 52-56. A. vespertilionis, intestinal caeca, detail of integument, capitu- 

 lum, hypostome, digit 37 



57. A. vespertilionis, larval hypostome, digit, dorsal plate, anus . 38 



58. The tarsi I and IV of 9 species of Ornithodoros compared . . 40 

 59-60. Ornithodoros savignyi, details of integument .... 43 



61-63. 0. savignyi, palp, hypostome, digit 44 



64-65. 0. savignyi, tarsi I, III and IV, larva, dorsum and venter . . ' 45 



66. 0. moubata $ , dorsum and venter ...... 49 



67-68. 0. moubata, part of (J venter, cast skin of nymph . . 49 



69. 0. moubata, capitulum of $ , ventral aspect .... 49 



70-71. 0. savignyi, legs I and IV 50 



72-73. 0. moubata, legs I and IV . . 50 



74-75. 0. moubata, nymph, venter and capitulum 51 



76-79. 0. moubata, egg, larva and details thereof . . . . ■. 51 



80. 0. moubata, capitulum and palp of larva 52 



81-82. 0. coriaceus $? , dorsum and venter 56 



83-84. 0. coriaceus $ , side view and venter 56 



85-87. 0. turicata (J , dorsum and venter, digit 58-59 



88. 0. talaje, hypostome and digit 60 



89. 0. talaje var. capensis $ , anterior part of venter ... 62 

 90-92. 0. pavimentosus, legs I and IV, and I and II ... . 63 



93-94. 0. tholozani, digits of $ and $ 66 



95-97. 0. lahorensis $? , dorsum and venter 67-68 



98-100. 0. lahorensis, digit, hypostome, tarsi I to IV . . . . 68 



101. 0. furcosus <% , tarsi I, II and IV 70 



102-103. 0. megnini £ , dorsum and venter 72 



104. 0. megnini, digits of nymph and J 72 



105-107. 0. megnini, young nymph, dorsum and venter .... 73-74 



108. 0. megnini, capitulum of nymph in ventral aspect ... 74 



109-110. 0. megnini, larva, dorsum and venter 76 



111-112. 0. megnini, leg of larva, gorged larva 77 



113. 0. canestrinii $, anterior part of venter, tarsus I ... 78 



114. 0. papillipes $, anterior part of venter, tarsus IV ... 79 



