70 Genus Ornithodoros 



ORNITHODOROS PURCOSUS Neumann, 1908. 



Fig. 101. 

 Lit. and Icon.: Neumann, 1908, p. 21, Fig. 16 (here reproduced). 



Female: 10 x 5mm.; lateral borders nearly parallel with anterior 

 conical hood ; posterior border broadly rounded ; blackish-brown, capi- 

 tulum and legs paler. Dorsum irregularly convex ; integument granular, 

 the granulations larger than the intervals between them ; a few long 

 hairs more abundant in front. No eyes. Venter convex, the folds not 

 well-marked ; anus nearer to the posterior border than to the vulva ; 

 camerostome shallow, without lateral folds ; vulva between coxae I. 

 Spiracles circular, prominent. Capitulum (about 1*4 mm. 1.) ; base flat 

 ventrally, very convex dorsally, nearly as deep (dorso-ventrally) as broad ; 

 hypostome somewhat lanceolate, 2 | 2, the inner files far apart ; palps 

 long, tapering, forwardly curved hairs on the dorsal surface of articles 1, 

 2 and 3. Legs : long, especially pair IV ; coxae sub-conical, contiguous 

 with wrinkled integument ; coxa II larger than I ; coxa III smaller 

 than I ; coxa IV still smaller ; article 2 sub-cylindrical, rather longer 

 than broad ; articles 3, 4 and 5 very long and swollen at their distal 

 extremities ; tarsi forked, owing to a sharp terminal dorsal spur ; tarsus I 

 has three low, rectangular dorsal prominences in addition ; tarsus IV very 

 long. 



Described from one $ in bad condition, taken at Riobamba (Equador), 

 by Dr Rivet (Paris Mus.). 



J— l^^^J 



r 



ii. 



IV. 



Fig. 101. O. furcosus ? . Tarsi I, II, IV, x 20. Nn. 1908, fig. 16. 



