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having pointed scapulae ; I. schilling si has a deeply punctate scutum 
without pointed scapulae, coxae II—III unarmed and trenchant: I. oldi 
has a short basis capituli, short palps, oval scutum with lateral ridges, 
coxae II-IV unarmed. 
Ixodes oldi n. sp. 1 
(Fig. 3.) 
Male : Unknown. 
Female : Hard parts chestnut coloured. ( Do?’sctl aspect.) Scutum 
with rounded scapular angles, but slightly emarginate, nearly as broad 
as long, varying between 1x08 and 0’9x0’8 mm. 2 , but appearing longer 
in proportion to the width ; broadest either midway or at about the 
Fig. 3. Ixodes oldi n. sp. ? . Capitulum in dorsal and ventral aspects, scutum, 
coxae I-IY, anal groove, spiracle and tarsus 4. (N. Cunliffe, del.) 
anterior third (varies), rounded laterally; cervical grooves shallow, 
diverging posteriorly and not attaining the posterior border-; lateral 
grooves marked by a salient ridge which is more or less distinct, and, 
when marked, attaining the postero-lateral border; many moderately 
coarse punctations uniformly distributed, especially between the cervical 
grooves posteriorly; no hairs. Capitulum : Base shorter than broad, 
1 Named after Dr J. S. S. Old, who has greatly aided us with material from Africa. 
2 The scutums of 8 ? s measured 0-9 x 0-8 mm., the remaining 0 measured 1 x 0-8 mm. 
