'< — Oorsoventral groove 



Spiracle 



Suprocoxcl fold 



Dorsal humps 

 Subopicai dorsal 

 profuDeronce 



Figure 10, cf, genital area 



Figure 11, $, greatly engorged, lateral view (sketch) 



Figtcre 12, 5, slightly engorged, lateral view 



KEY MCRPHOLOGICAL CHARACTERS, FAMnZ ARGAS3DAE 



Ornithodoros savignyi (Egyptian specimens) 



PIATE VI 



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