620 MEDICAL ENTOMOLOGY 



Amblyomma hebraemn, Koch, C. L. Male. (Plate LXXIX, fig. 3) 

 Scutum brown with yellowish markings and a transverse band not 

 connected with the postero-median ; longitudinal punctations very un- 

 equal, the largest situated on the band at the periphery. Eyes flat. Hy- 

 postome with six rows of teeth. Coxa I has two spurs, the internal flat 

 and as broad as long, the external twice as long as the internal. Coxae 

 II and III without spurs, coxa IV twice as long as broad, with one spur. 

 Tarsi terminating abruptly at. their extremities. Festoons, except the 

 external ones, of a light colour. Length 5*6 mm. ; width 4'8 mm. 

 (Neumann) 



Female. (Fig 4) Scutum triangular, almost as broad as long, and 

 with a straight posterior angle ; eyes towards the anterior fourth ; 

 numerous non-confluent punctations ; a large medium patch extending to 

 the posterior border of the scutum, with smaller lateral patches. Porose 

 areas large, oval and parallel. Coxa IV with a short flat spur as broad 

 as long. Length 6 to 20 mm. ; width 5 to 13 mm. (Neumann) 



This species is found in Cape Colony and German East Africa, chiefly 

 on stock animals ; it is also recorded from the giraffe, rhinoceros 

 and many different kinds of antelopes. In South Africa it is popularly 

 known as the ' Bont tick '. Neumann recognizes two varieties. 



Variety ebiirnttm, Gerst. Scutum of male with light yellow patches ; 

 the postero-median band joins the central transverse band, which is itself 

 blended with the two parallel cervical bands. In the female the eyes are 

 situated a little more anteriorly than in the case of hebraeum ; the 

 punctations are also finer. It is found in East Africa, and is parasitic 

 on the lion, buffalo, different antelopes, the giraffe, and on a species of 

 Varanus. 



Variety splendid urn, Giebel. Scutum of male without the transverse 

 brown band ; festoons, except the median and extreme ones, are light. 

 In the female the punctations are finer, especially in the middle of the 

 scutum. This variety is found on the buffalo and pig in East Africa and 

 the Congo Free State. 



Amblyomma variegatuin, Fabr. Male. (Plate LXXIX, fig. 5) Scutum 

 with large yellowish red marks ; the brown transverse band in the 

 centre separated by two large median clear markings : there is also a 

 narrow longitudinal brown band which does not join the median trans- 

 verse band. Eyes spherical. Punctations sometimes large and numer- 

 ous, often very fine and unequal. Hypostome with six rows of teeth. 

 Legs banded with yellow. Coxa I has two spurs, the internal flat and 

 as broad as long, the external conical and twice as long as the internal. 



