188 



Genus Ixodes 



Vulva facing coxae III. Sexual grooves almost straight, divergent. 

 Anus rather near the posterior border ; anal grooves parallel. Spiracles 

 small, rounded, whitish, placed in front of half the body-length. Gapit- 

 ulum of medium length (0'7 mm.) ; base broader than long, trapezoid, the 

 posterior border straight and blackish, the laterals convergent in front ; 

 porose areas large, circular; well-marked cornua; auriculae stouter, 

 closer together than cornua. Chelicera (?). Hypostome (Fig. 181) 

 rounded or truncated in front, of uniform width, bearing 6 | 6, then 5 | 5 

 rows of pointed teeth, the external rows longest. Palps : article 1 large, 

 forming a horn-like protrusion directed forward, concave externally 

 for the insertion of article 2 ; article 2 longer than 3, from which it 

 is not clearly separated. Legs medium ; coxae brownish, glossy, 

 bearing hairs at their posterior border; coxa I small, bifid, the outer 

 spur strong ; a short spur on the postero-external angle of coxae II-IV. 

 A short spur at the posterior distal border of the trochanters. Tarsi 

 long, narrow ; tarsus 1 scarcely shorter than articles 4 and 5 united, 

 without apparent pseudo-articulation ; tarsus 4 slightly shorter and 

 thicker ; all tarsi taper gradually distally ; pad § the length of claws. 



Fig. 180. I. nuritulus ? : capitulum and Bcutum ; V ventral and D dorsal aspects. 



(Neumann, 1899, Fig. 22.) 

 Fig. 181. /. auritulus ? : hypostome, x 65. (Neumann, 1899, Fig. 23.) 



