232 



Genus Ixodes 



Female (Fig. 228) : Body short oval, 6x4 mm., dark brown. 

 Scutum oval-lozenge-shaped, longer than broad (1*8 xl'l mm.), broadest 

 slightly behind the anterior third, dark brown, glossy, slightly emar- 

 ginate 1 in front, very fine punctations, slight lateral grooves 1 , cervical 

 grooves very superficial and extending beyond half the scutal length. 

 Dorsum with many clearly visible punctations, few scattered hairs, 

 tegumentary folds very marked and undulating ; traces of three posterior 

 grooves. Venter bears similar punctations, hairs and folds ; vulva small, 

 between coxae IV ; anal groove encircling the anus, converging behind 

 and uniting in an elongated point. Spiracles larger than coxa, IV, 

 slightly oval, with long axis transverse to the body axis. Capitulum 

 narrow, 0'92 mm. long. Dorsal base rectangular, much broader than 

 long; very slight cornua; porose areas oval (but variable), oblique, 

 slightly converging in front, almost tangential to the posterior border, 

 the interval equal to their width ; no auriculae. Hypostome long, 

 narrow, lanceolate, with 2 (? 3) marginal rows of teeth on each side, 

 leaving the middle portion free. Palps long, slender, article 2 at least 

 twice as long as 3. Legs slender, relatively short, maroon-brown. 

 Coxa I prolonged by an internal spur, which is fine, about three times 

 as long as broad at the base ; coxae II— III unarmed ; coxae IV with a 

 very small external tuberosity. Tarsus 4 tapering obliquely, with a 

 slight swelling at its base. 



Fig. 228. I. ugandanus ? : capitulum and scutum. (Neumann, 1906, Fig. 3.) 



i Neumann states that the ? scutum is not emarginate and does not possess lateral 

 grooves ; that the spiracle is small, and the porose areas oval. 



