NEW PARASITIC JIITES. 



779 



LipuNYssus BiscuTATus, sp. 11. (Text-tigs. 21, 22.) 



5 . Dorsal shields two in number, both are faii'ly wide, the 

 outline of the posterioi" one is shaped rather like a thimble or 

 cone, the blunt apex of which is the posterior end. Hairs on 

 scutum not numerous and arranged as shown in figure, those in 

 the middle of its surface are short, but the ones on the margins 

 of the anterior plate are longer. Hairs on softer part of dorsum 

 much longer than those on the dorsal shields, a few at the 

 posterior end of the body being considerably longer than the 

 others. Hairs on venter fine and of moderate length. Sternal 

 plate large and its surface is strongly reticulated ; its posterior 



Text-figure 22. 



JJpnm/sxux hiscntatnx, sp. n., 9 • Ventral view. 



margin is concave ; three pairs of hairs are present on it, the 

 first pair being short and weak, the posterior pairs very long. 

 Genito-ventral plate narrowed posteriorly to form a sharp point. 

 Anal -plate pyriform and rather longer than usual. Peritreme 

 reaching as far forwards as the middle of the second coxa or 

 slightly further. First free segment of the palp furnished with 

 a strong pointed tooth-like process. Anterioi'ly the second coxa 

 has the usual spur, otherwise the coxas are devoid of spurs. 

 Hairs on legs quite fine, none of them being spiniform. 



Length of body (not including capitulum) "65 mm. 



Host : Dendropicus cardmalis, South Africa. 



