DISEASE RELATIONS 

 Unstvidied. 



RMARKS 



The haller's organ of R. supertritus has been illustrated by 

 Sch^llze (l9Al). Zumpt (19^B) includes k. supertritus in the R. 

 capensis group (see R. longus , page 667). 



IDENTIFICATION 



This rugose species has been described best by Theiler (l%7) 

 Variations are within the general remarks below. 



Male: This species is usually large, from 3.3 mm. to 5.3 mm. 

 long IHTfrom 1.3 mm. to 3.3 mm. wide, and usually black. It is 

 easily recognized by a combination of characters including a 

 pointed dorsal projection of coxa I; scutal punctations that are 

 large, dense, and closely spaced or contiguous; and conspicuous 

 reticulation or shagreening of the cervical areas and of the 

 posterior grooves. The posteromedian groove is longer and nar- 

 rower than the paramedian grooves; the lateral grooves are wide 

 and deep. One or three median festoons protrude upon engorgement. 

 The narrowly elongate adanal shields have a moderately convex 

 outer margin and an almost straight or slightly concave inner 

 margin; these margins meet at a pointed or a rounded anterior _ 

 and posterior juncture and the shields are more ovoid than tri- 

 angular in shape. 



Female: Conspicuous shagreening or reticulation of the cer- 

 vicallS:^ and of the lateral grooves also distinguishes females 

 of this species. The punctations are coarse and rugose, adjacent 

 or contiguous centrally. The dark brown scutum, which is about 

 as wide as long, has flat eyes at about midlength and a sinuous 

 or gradually rounded posterior margin. Its pronounced lateral 

 grooves are impunctate and extend to the posterior margin; the 

 cervical grooves are deep and converging anteriorly, superficial 

 and diverging posteriorly. 



_ 770 _ 



