234 



Genus Ixodes 



shallow ; punctations fine, numerous, finer and less numerous longi- 

 tudinally over the whole median third, the punctations absent in two 

 symmetrical, longitudinal and sinuous depressions occupying the anterior 

 two-thirds, where they are limited outwardly by a linear prominence 

 indicating a lateral groove. Venter concave ; hairs few and very short ; 

 genital orifice broad, between coxae II ; pregenital plate short, rather 

 broader than long ; median plate quadrangular, narrow in front, much 

 longer (17 mm.) than broad (1*1 mm. posteriorly) ; anal plate cordi- 

 form, as broad as long, with anterior border straight, sides convex 

 and forming a point behind, with fine punctations ; adanal plates twice 

 as broad at the posterior border as in front 1 , finely punctate and fused 

 behind the point of the anal plate ; spiracles large, oval, much longer 

 than broad. Capitulum yellowish, short (0 - 6 mm.), with pentagonal 

 dorsal base, as broad as long ; lateral borders slightly diverging in front, 

 ending at the insertion of the palps ; posterior borders straight, without 

 salient angles; no auriculae; hypostome short, broad, 2 | 2, with rounded 

 teeth. Palps short, broad ; article 1 transverse ; articles 2 and 3 

 apparently fused, constricted at the base and very broad dorsally along 

 most of the length. Legs dirty yellow, long, stout; coxae broad, 



Fig. 229. I. cordifer <? : venter and tarsus 4. (Neumann, 1908, Fig. 1.) 

 1 Neumann's figure, reproduced here, appears to be inaccurate in this respect. 



