AXXALS OF THE TrANSVAAL MuSEUM. 



145 



AMBLYOMMA CEEXATUM, NEUMANN. 



The liuEELED Tick. 

 Auiblijoiii iiKi sKhhiliun, 2seuiiiann (1899). 

 Ainblijouiiiia crenaliint, Xeiimanii (1899). 



r!((le XII , ligure /'. 



Male. — Body a sliort oval^ sides rounded, T mm. loiii^' (without 

 .rostrum), 6.5 mm. wide. Sliield a little convex, dirty yellow, with a thin 

 whitish bloom in the sca2)ular angles and on the sides ; in the nuddle a 

 brownish, narrow hand, prolonged to the lateral margin by a wider band, 

 not distinctly limited ; near the posterior quarter, a median irregular 

 spot of the same colour, joined in front to the transverse 1)order by two 

 curved lines, and giving oil' behind three short prolongations, of which 

 one is a median. Eyes large, flat, scarcely paler than the shield and finely 

 bordered with brown ; cervical grooves short and deep ; marginal groove 

 narrow ; not very deep, contouring the posterior margin, from which it 

 is twice as far removed as the lateral margin ; festoons narrow, at least 

 twdce as long as wide; punctuations numerous, large, equal, not very 

 deep, regularly distril}uted, and of the colour of the shield ; among them 

 son^e jjunctuations more numerous, very fine, superficial, brown. A 

 jjosterior constriction, well marked, at the level of the stigmatic plates. 

 Ventral sarfacc of the same colour as the shield, glabrous ; posterior 

 festoons very apparent, not limited in front, marked in the middle by 

 ■diffuse brownish spots ; stigmatic plates large, wdntish, comma-shaped, 

 wdth tail short, projecting outward. Ilostruni very large (3 mm.), 

 brownish ; base a little constricted behind, posterior angles scarcely 

 salient, very finely punctured ; hypostome armed, in its antei'ior 

 third, with three rows of strong teeth on each half ; j)alpi long, ])row'nish, 

 the second article nujre than twice as long as the third. Letjs very long, 

 ;strong, intermediate articles yellowish wdiite, the fourth reddisli in the 

 middle, the fifth in its proximal half ; coxae 1 divided into two laro-e 

 spines, the outer strong and sharp, the inner wide and a half shorter : a 

 long blunt s])ine on coxae TV ; tarsi relatively long, with two strong 

 consecutive spurs. 



Female. — Body in a short oval ; sides rounded ; flat ; 9 mm. long 

 (without rostrum), 8 mm. wide. Shield {A7/, /') triangular, a little wider 

 (5.2 mm.) than long ; cervical eniargination prolonged in front l^y two 

 points, anterior margins a little oblique, the latero-posterior almost 

 straight, posterior angle wdde and a little rounded ; cervical groove 

 at first straight and very divergent, then bifurcate, the inner brancli 

 bordering on the median area, the outer sliort ; median area a little 

 ; salient ; punctuations numerous, unequal, abundant, and confluent about 

 the eyes ; colour reddish yellowy wdtli a yellowdsh wdiite bloom on the 

 lateral area-, rdono- the cervical mariiin and in the posterior angle : a 

 small lirownisli mai-Lnnal si)ot on cacli <\dv at the ])Osterior third of the 

 lateral border. Eye.^ large, flat, relatively anterior, yellowish. Dorsal 

 sarfare {XJI^ i) reddish lirown, pitted wdth numerous and lart^e jiunctua- 

 tions ; a marginal groove, bordering the ]iosterior festoons in front, wdiich 

 are longer than wide, inner margins longer than outer, giving a crenulate 

 aspect to the jiosterior margin of the body. Ventral sarface of the same 

 colour ; punctuations finer, surmounted bv fine hairs ; stigmatic plates 

 'large (2.G mm. long), triangular angles rounded. Eosti'mn (NIT, i) verv 



