I. pilosus 



22f> 



Fig. 221. I. pilosus larva (unfed) : venter, dorsum, tarsus 3, digit. Same source as o in 

 Fig. 220. (N. 919. Original, G. H. F. N. del.) 



Origin: Koch's type, a ?, came from S. Africa. Neumann (1899) 

 described the species from 3 </" and 5 % specimens from Cape Colony 

 (E. Simon coll.), and subsequently reported (1901), after examining 

 specimens from C. P. Lounsbury's collection, that pilosus is found 

 abundantly in Cape Colony on cattle, mules, horses and pigs. Lounsbury 

 (1900 a) observed specimens in copula on cattle, horses, goats and hogs, 

 and (1900 b), records them as occurring at Stellenbosch ; he successfully 

 reared large numbers of larvae on goats ; he, moreover, states (1904) that 

 the "russet tick" is common on dogs at Stellenbosch. Mally (1904) 

 states they occur on sheep in the E. Province, Cape Colony. Howard 

 (1908) adds man, the cat, leopard and bush-buck to the list of hosts, 

 and Donitz (1910) records the species from the civet cat at Umtali. 

 According to Howard and Lounsbury, it occurs in grass districts both 

 in Cape Colony and the Orange Free State. Mr W. F. Cooper's 

 collection contains $ s from the duikerbok, Gonubie Park, S. Africa, xn. 

 1908. 



Our drawings have been made from numerous specimens of all stages 

 kindly presented by Mr C. P. Lounsbury, in 190G (N. 919-923), and we 

 have received other specimens from Cape Colony through the courtesy 

 of Messrs E. G. Wheler (N. 924-927) and A. H. Noel Pillers (N. 1111). 



Neumann has described a variety of 1. pilosus under the name of 

 /. pilosus howardi, which appears to us doubtfully good for the following 

 reasons : 



We possess numerous specimens received from Lounsbury (in whose 

 collection Neumann, 1901, p. 288, found Koch's I. pilosus in abundance), 

 and these were sent to us as co-types of /. pilosus. On measuring 

 them it was found that they agreed better with Neumann's description 

 of the var. howardi. 



Neumann, however (in a letter dated July 27th, 1910), admits that 



