/. cavipalpKx 



193 



Male (Figs. 184, 185) : L. 19, W. 12 mm. Body long-oval (Fig. 184). 

 Scutum accurately long-oval, broadest in the middle, glossy, hairless ; 

 marginal fold very narrow in front and gradually broadening posteriorly ; 

 no lateral grooves ; cervical grooves 1 and punctations very faint. Venter 

 brown with long hairs ; sexual orifice between coxae III ; pregenital 

 shield longer than broad, narrow in front ; anal grooves slightly 

 divergent ; anal shields slightly broader in front ; spiracles oval, white. 

 Capitulum (Fig. 184 A, B) short (0"5 mm.), like that of /. ricinus in 

 general appearance ; basis capituli with median posterior point ventrally ; 

 hypostome with six well-marked transverse ridges of teeth giving the 

 effect of dentition 3 | 3 ; large basal teeth. (Digit ; see Fig. 185 B.) 

 Legs moderately strong ; coxa I with a slight spur, coxae II-IV 

 unarmed, but for a very slight tubercle at the external angle of coxa 

 IV ; tarsi tapering gradually. 



A B 



Fig. 184. I. cavipalpus i : dorsum ; A and B : capitulum in dorsal and ventral aspects. 

 (Nuttall and Warburton, 1908, Figs. 1 and 2.) 



A B 



Fig. 185. I. cavipalpus : (A) i and ? spiracles, respectively, measuring 370 ;t and 270 /t£. 

 orientated so that the tick's capitulum was to the left and the dorsum above ; the ? 

 spiracle shows a slight angularity postero-dorsally. (B) i and ? digits, respectively, 

 138 ix and 140 /x. I., viewed from the dorsal surface. (Nuttall and Warburton, 1908, 

 Figs. 4 and 5.) 



1 Accentuated in Fig. 184. 



