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Introduction 52 



Key to Sudan species of Argas 55 



Argas (Argas ) persicus 59 



Argas (Argas ) reflexus 75 



Argas (Ogadenus ) brimpti 82 



Argas (Chiropterargas ) boueti 91 



Argas (Chiropterargas ) confusus 98 



Argas ( Carios ) vespertilionis 10/V 



Ornithodoros 113 



Introduction 113 



Key to Sudan species of Ornithodoros 118 



Ornithodoros (Ornithodoros ) moubata T 121 



Equatoria Province records 121 



Distribution in the Svidan 121 



Distribution 122 



Hosts 127 



Introduction 127 



Hisnan hosts 127 



Domestic mammal, hosts 127 



Domestic fowl hosts 128 



Wild mammal hosts 129 



Wild reptile hosts 132 



Biology 132 



Life cycle 132 



Ecology 1^4 



Environment and domestic habitats LW- 



Wild habitats U9 



Predators and enemies 150 



Remarks 151 



Environmental adaptability 151 



Structure and function 159 



Introduction 159 



Internal anatomy 159 



Feeding and digestive organs l6l 



Digestion l68 



Rectal excretion 171 



Coxal organ morphology and function 172 



Spiracular morphology and function Y?U 



Haller's organ 175 



Abnormal development 175 



Symbiotes 177 



_ 2 _ 



