3. Lateral grooves not extending beyond 

 the posterior third of the scutum. 

 Scutum with few punctations except 



in the caudal area which is depressed 

 between two lateral ridges and soma- 

 times very shagreened. Small ticks, 

 often frail, maxinium overall length 

 usually less than 5 nm. (Fairly 

 common on cattle and esijecieilly on 

 horses in central Provinces: also 



occurs in Northern Province) H. EXCAVATUM 



Figures'~166 and 167 



Lateral grooves extending beyond the 

 midlength of the scutum (may be obs- 

 cured in very heavily punctate spe- 

 cies; examine by oblique orientation) U 



4. Scut\im smooth, bright*, with very few, 

 large, shallow, scattered, pvmctationsj 

 posteromedian and peiramedian grooves 

 well marked. Legs usually not ringed. 



(in northcentral Provinces; rare) H. DETRITUM 



Figures 158 and 159 



Scutum densely pxmctate, or id.th dense, 



contiguous punctations posteriorly 5 



5. Scutum densely, entirely, and almost 

 always Toniformly covered by puncta- 

 tions often obscviring the lateral 

 grooves 



Scutum irregtilarly punctate, or 

 punctate only posteriorly 



*Do not confuse this with H. truncatum that has a smooth, shiny 

 scutvun but also dense puncTations in a rectangular field poste- 

 riorly. 



- 398 - 



