KEI TO SUDAN SPECIES OF HAiMAPHYSALIS 

 MALES 



1. Coxa IV vith needlelike spur that 

 is longer than coxal width. (On 



southern ruminants) H. ACICULIFHl 



Figures l^i^ and 129 



Coxa IV with sptir much shorter than 



coxal width or without spur 2 



2. Fatlpal segment 2 with strong dorsal 

 retrograde spixr. Lateral grooves 

 extending anteriorly only to scutal 

 midlength. (Squatoria mountains, 



rare) H. PARMATA 



Figures 13^ and 155 



Palpal segment 2 with no dorsal 



retrograde spur 3 



3. Palpal dorsal basal margin forming 

 a straight line; basal salience at 

 right angles to long axis of palpi. 

 Basis capituli rectangular. Scutum 

 comparatively broad with large 



punctations. (Avian parasite) H. HOOD I HOOD I 



Figures 136 and 137 



Palpal dorsal basal margin angular, 

 forming a more or less well devel- 

 oped, caudally-directed spur or 

 recurved point . (Mammal parasites ) U 



U. Trochanter I with a strong ventral 

 spttr. Elach coxa with a spur reaching 

 next coxa. Tarsi short, stout, ab- 

 ruptly tapered. (Common on ground- 

 squirrels only) H. HOUYI 



Figures 14Q~and 1/|1 



Trochanter I without ventral spur 5 



- 339- 



