146 



Anj^^als of the Tkajtsvaal Museum. 



long (4 mm.) ; base wider than long ; hypostome a little spatulate^ armed,, 

 on the interior half, on each side with three longitudinal rows of 8 to 

 10 teeth each, the outer row longer, the inner removed from its neigh- 

 bour and doubled behind by a fourth shorter row ; squamiform denticles 

 behind the teeth ; palpi with the third article as wide as long, dilated 

 on its inner dorsal margin. Legs very long, strong ; coxae I bicuspid ;. 

 the others flat, and a little attenuated on their posterior margin ; tarsi 

 long, sharply attenuated at their extremity, two strong terminal spines, 

 claw^s long, caruncle short. 



Hosts. — Ehinoceros. 



Halltat. — Sumatra (?), Cape Colony. 



I have never seen a specimen of tliis species. The description is- 

 taken from Xeumann. 



AMBLYOMMA SYLVATICUM, (DE GEEB). 



The Cape Tortoise Tick. 



Acfu-us sylvatirus, De Geer (1778). 



Cyiiorhaesfcs sijhuiticus, Hermann (1804). 



A iiihl i/iiiii iiHi si/lrdllruin, Koch (1844). 



IhjaloiiniKi (Icriuiii (female), Koch (1847). 



Ixodes si/lrntici(s, Gervais (1844). 



AiiililyoiniiHi sylvii lieu III (De Geer) (Neumann, 1899). 



Male. — Bddij regularly oval ; sides rounded ; 4.5 mm. long (rcjstrum 

 not included), 3.2 mm. wide. Shield chestnut brown, lighter on the 

 margin, convex ; cervical grooves short, deep, lunate ; no marginal groove ; , 

 posterior festoons with separations not very deep ; punctuations 

 numerous, deep, very unequal, some disposed in a series replacing the 

 marginal groove on the sides ; eyes small, shining, hemispherical, sub- 

 marginal in an orbicular excav ation ; on the margins and on tlie last 

 penultimate festoon an irregular spot, yellowish white, or reddish yellow. 

 Ventral surface yellowish ; stigmatic plates in a short comma, bordered with 

 whitish. Bostrum chestnut lirown, 1.7 mm. long, base relatively long and 

 narrow ; hypostome wide spatulate, with numerous anterior denticles, of 

 wdncli the marginal ones are bifid or trifid, followed on each half by four 

 rows of eight teeth each, decreasing from front to l)ack ; numerous 

 posterior squamose denticles ; palpi of medium length, spotted with 

 whitish on the inner margin of their upper surface. Legs of medium 

 length ; coxae small, all with two short points on their posterior margins ; 

 movable articles whitish on their dorsal border ; tarsi sharply attenuated at 

 their extremity ; a terminal spur, very small on tarsi II, III, and lY ; 

 caruncle scarcely passing the base of the claws. 



Female. — Body oval, 6 mm. long (not including rostrum), 5 mm. wide. 

 Shield oval, cordiform, as wide or wider than long, whitish yellow in the 

 larger part of its extent ; a border of Ijlackish brown on the sides, narrow, 

 except at the level of the eyes, which it surrounds ; cervical grooves deep 

 in front, reaching almost to the posterior margin, covered by a blackish 

 l)and in the middle of the lateral area, a small black spot ; punctuations 

 deep, unequal, Idack ; sometimes a brown spot in the median area ; eyes as 

 in the male. Dorsal surface reddish l)rown ; when young a marginal 



