148 



.Ankals of the Tkaj^svaal Museum. 



; Nymphs. 



.■■ A. Eye-like reddish spot on each aiitero-lateral angle of shield, which 

 is nearly colourless otherwise. .. .. laeve capense. 



A A. Shield dark reddish brown, except postero-median area, which is 

 lighter, no reddish eye-like spot on shield . . . . exornatum. 



Larvae. 



A. Dorsal shield nni-colonr, no eye-like reddish spots present. 



exornatum,. 



AA. Dorsal shield with eye-like reddish spots in antero-lateral angles. 



laeve capenSe. 



APO]S'OMMA EXOENATUM. {KOCH.) 

 ' The Lizaed Tick. 



Amhiyonnna exornatuin, Koch (1844, 1847). 

 • Ixodes flavoinaculafus^ Lucas (184G-51-G7). 

 Ophiodes flavomaculaius, Murray (1879). 

 ^ ■ Ixodes varani, Lewis (1893). 



Apoitoimna exornatum (Koch) (Xeumann, 1899). 

 . P/rt/e A7 r, figures « to ; Plate X V , llgwYe^ a to c, f. 



Male. — Body short, almost as wide as long, somewhat quadrangular 

 or orbicular, length 3 mm. to 5 mm. (rostrum included), width 3.5 mm. to 

 3.3 mm. Shield covers all the dorsal surface, glabrous^ punctuations very 

 small, somewhat unequal, distributed over all the surface ; cervical grooves 

 very short, wide and deep ; eleven posterior festoons with separating 

 grooves short and rather shallow ; dorsal porose areas just below the 

 middle of the length, small and widely separated ; ground colour of shield 

 a deep reddish brown, lighter on the edges, on this is arranged nine large 

 metallic green spots, sometimes almost invisible, as follows : — Two short 

 sub-triangular spots^ one in each cervical angle, next the insertion of the 

 rostrum ; two linear marginal spots, one behind each of the cervical spots, 

 a spot inside each of these linear spots, converging anteriorly at about the 

 same level^ and extending backward, passing them laterally by a widening 

 of their posterior ends ; two posterior spots separated by the median line, 

 and close to the festoons a median spot, somewhat rectangular, and not far 

 posterior of the extremities of the cervical grooves. Ventral surface {XIV, 

 a) reddish yellow ; many small equal punctuations, especially near the anus ; 

 iestoons showing slightly on the posterior margin ; sexual orifice rather 

 wide opposite coxae II ; sexual grooves widely divergent behind coxae IV, 

 reaching nearly to the margin ; anus very far caudad ; anal 

 groove semi-circular, opening forward ; ano-marginal groove short ; 

 ■stigmatic jDlates large sub-triangular, elongate, postero-laterally, 

 narrow in front. Rostrum {XIV, h) narrow, base nearly twice 

 as wide as long on dorsal surface, rounded on the sides ; mandibles 

 {XIV, c) with inner apophysis of digit bearing a simple transverse 

 jorocess ; outer apophysis with a single strong tooth ; hypostome spatulate, 

 with numerous denticles anteriorly, followed by three longitudinal rows 

 of teeth on each half, consisting of seven to eight teeth each, then a series 

 of squamiform denticles cover the rest of the organ to near the base ; palpi 



