152 



AXNALS OF. THE TrANSV AAL MuSEUM. 



of false articulation^ the bosses of tarsi not pronounced ; a small terminal 

 spur. 



Nyuiph. — Bddij Ijroadl}' oval ; widely rouiuled at both extrenuties : 

 almost as wide as long^ unengorged 1 mm. (without rostrum), engorged 2.3 

 mm. long by 2 mm. wide (with rostrum); colour iighL yellowish, almost , 

 translucent. iS/iield {^V, g) heart shaped, as wide as long, broadly rounded 

 at posterior angle, postero-lateral edges slightly concave, antero-lateral 

 edges, colour light yellowish with rechlish eye-like spot in each antero-lateral 

 angle ; cervical emargination deep, no cervical groo^•es ; no punctuations. 

 Dorsal surface with a median and two lateral grooves, all tbree long and 

 straight ; festoons veil marked. Ventral surface same colour as tbe dorsal ; 

 anus at tJie posterior third ; coxal groo\'es widely divergent Ijchind : anal 

 groove semi-circular, opening in front ; ano-marginal groove long and 

 distinct ; festoons present ; stigmatic plates almost circular, slightly 

 elongate on j^ostero-lateral edge. liosfruiu small, slender ; base nearly 

 triangular on dorsal surface, rectangular ; ventral surface slightly wider than 

 long ; hypostome with numerous small denticles at the tip^ then two rows 

 of three teeth each, followed by two series of teeth on each half, consisting- 

 of six teeth in each series ; mandibles (A'l\ /) with inner apophysis of digit 

 slender, and bearing a lunate process near its tip, the extremities of which 

 are sharp and extend outward, the outer apophysis bears four teeth, the two 

 lower very large, the two anterior very small ; palpi elongate, excavated on 

 inner edge ; article I very short and wide ; article II constricted at base, 

 and twice as long as article III ; article IV as in male, only a little larger 

 proportionately. Legs short and thick, light yellowish in colour ; tarsi I 

 very long ; all tarsi gradually attenuated at their extremity ; no si)urs 

 present ; coxae (XF, e) rather elongate, coxae I with a short spine on its 

 posterior median angle ; coxae II, III, and IV with a short blunt spine on 

 the middk' })art of the ])Osterior edge. 



Larva. — Bndi/ short, nearly circular in outline, unengorged 0.8 mm. 

 wide by 1 mm. long, including rostrum ; engorged 1.3 mm. long, including- 

 rostrum, by 1 mm. wide ; colour yelloAvish brown (almost colourless). Shield 

 same colour as body, heart shape, posterior angle broad, surface finely 

 reticulated, cervical grooves deep, concave outAvard, no marginal grooves, 

 at each antero-lateral angle a light reddish eye-like spot. Dorsal grooves 

 and festoons faintly marked. Ventral surface same colour as dorsal : anus 

 at posterior fourth of length ; anal groove semi-circular, other grooves only 

 faintly marked ; three pairs of stigmatic plates, one behind each coxa. 

 Bostrurn similar to that of e.roniatum ; mandibles with inner apophysis 

 bidentate, outer apophysis with four teeth ; hypostome spatulate ; several 

 denticles at tip, then two rows on each half of three teeth each, followed 

 by five or six roAvs of large teeth, two teeth on each half to a roAv ; palpi 

 slender, article I short, articles II ancl III about equal in length. Legs- 

 very sTender and light coloured ; coxae each Avith a sharp spine on their 

 posterior margins. 



Hosts. — Black snake (Cape Colony), Mamba (Dendraspis angusticeps- 

 (Transvaal), and other snakes. Both adults, nymphs, and larvae have been 

 found on snakes. 



BistrUrution. — Cape Colony (Adelaide), TransA^aal, Mocambique. 



