AnjStals oe the Trai^svaal Museum. 



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^ ijinph. — Body (unengorged) elongate, elliptical ; reddish brown in 

 colour ; length 1.5 mm. by 1 mm. wide. Shield covers anterior half of body. 

 When engorged, body oval, widely rounded, slightly wider in front than 

 behind ; length 1.5 mm. by 3 mm. wide ; colour bright bluish, lighter on 

 margins. Shield jientagonal {XI a) ; longer than wide, well rounded 

 behind ; deep brown in colour ; lateral angles very posterior ; cervical 

 grooves nearly straight, deep, reaching almost to the posterior margin ; 

 eyes hemispherical, dark coloured. Dorsal surface with numerous unequal, 

 deep and irregularly distributed pits, each with a minute whitish hair ; 

 two anterior grooves very divergent and slightly concave outward, some- 

 times these grooves are doubled by a second groove which is not continuous 

 throughout its extent ; three posterior grooves one median and faintly 

 marked, laterals shorter and slightly divergent posteriorly. Ventral 

 surface sometimes with whitish hairs ; punctured as on dorsal surface ; 

 ano-marginal groove distinct and reaching to the posterior margiii ; 

 genital grooves widely divergent behind coxae IV ; stigmatic plates 

 whitish, nearly circular ; anus near posterior third of length. Rostrum 

 (X/, a) short ; base much wider than long ; posterior edge straight ; sides 

 rounded ; hypostome with four rows of teeth ; mandibles with inner 

 apophysis bearing a tridentate process, outer apophysis with three teeth, 

 the upper of which is very small ; palpi elongate, cylindrical, article I 

 very short, article II at least twice as long as broad, article III only 

 slightly longer than broad. Legs slender ; reddish brown in colour : 

 coxae each bear two blunt, almost inconspicuous teeth on their posterior 

 margins, those of coxae I are longer and sharper than those on the 

 remaining coxae ; tarsi elongate, no spurs. 



Larva. — Body, when unengorged, elongate, elliptical, widest near 

 middle ; well rounded behind ; length 0.5 mm., width about 0.3 mm. ; 

 colour light yellowish ; shield darker coloured and covering anterior half 

 of body. When engorged, body is elongate, elliptical, sides nearly parallel ; 

 length 1.2 mm. by 0.6 mm. wide ; colour deep brownish blue. Shield 

 as wide as long ; widely rounded ]:>ehind ; colour light reddish brown ; 

 shagreened ; cervical grooves deep anteriorly then shallow, extending two- 

 thirds of the length of the shield ; eyes small, hemispherical, dark 

 coloured. Dorsal surface {XI, e) with tliree longitudinal grooves. Ventral 

 surface {XI, e), with anus near posterior third ; eleven festoons, distinctly 

 marked ; stigmatic openings in four pairs, one behind each coxa and a 

 fourth pair in the posterior portion of the body, not far from the margin. 

 nostrum short ; base wider than long ; posterior margin concave ; sides 

 rounded ; palpi short and thick, article I very short, article II twice as 

 long as wide, article III as wide as long ; hypostome with four rows of 

 teeth ; mandibles with process of inner apophysis tridentate ; outer 

 apophysis tridentate, upper tooth verv small and sub-terminal. Legs 

 slender ; coxae with no teeth ; tarsi elono-ate. 



^99^- — I^ark brown in colour : surface shiny ; elliptical in outline : 

 length 0.5 mm. by 0.3 mm. in width. 



Hosts. — The different domestic animals, ox, horse, ass, mule, sheep, 

 dog, giraffe, eland, reed buck. 



Halitat. — South Africa : Cape Oolonv, Transvaal, Xatal, Ehodesia, 

 German East Africa, tropical Africa, 'German South-AVest Africa! 

 Mocambique. 



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