Anjtals of the Traxsvial Museum. 



105' 



anal plates large, wide, triai]<>'iilar, almost twice as l()ii(>' as wide, 

 inner margin concave, outer and posterior convex; the colour is deep 

 chestnut; a few large l}ristling hairs on the posterior part; stigmatic 

 plates comma-shaped, chestnut coloured, lighter on the periphery, and 

 surrounded l)y an outer concave margin ; a small supplementary 

 ivory-like })late. Base of rosfnnn reddish brown, lateral margins 

 whitish; pal})i yellowish whitc^ on their dorsal surface. J^^<^gs of 

 medium length ; articles whitish on tlieir dorsal margin and at the 

 distal extremity; coxae I conical, with point thick, recurved back- 

 ward and a little outward ; near the postero-external angle a narrow 

 long spine. 



Female. — Body oval, flat, 8 to 8.5 mm. long. Dorscil shield 

 cordiform of same colour as that of male, with design similar to that 

 of male; })unctuations large, more abundant than in male; inside the 

 eyes a small oblique spot; eyes as in the male. Dorsal surfaee deep 

 reddish brown, traversed by longitudinal grooves, punctured, 

 wrinkled ; a n)arginal groove and posterior festoon ; near the po.sterior 

 third, inside the marginal groove, and, on each side, a large light- 

 red spot, rounded, salient, smooth ; abundant hairs on the remainder 

 of the dorsal surface. Stigmatic plates as in male. Rostra in and legs 

 as in male. 



Hosts. — Hi ppopota mus amphihius. 

 Hahif((f. — South Africa, East xifrica. 



I have never seen a specimen of this species, and the above 

 description is compiled from those given by Neumann in his " Revision 

 de la Famille des Ixodides." 



GENUS MAlUiARDPUS. KANSCH. 



Margaropus, Karscli (1879). 

 BoopJnlus, Curtice (1890). 

 I\Ji I picep/ial us , Neumann (1897)., 

 Marga rojnis , Karsch (Neumann, 1907). 



Rostrum short; i)alpi, more or less angular; eyes present. No 

 anal groove. Stigmatic plates circular or oval; hvo anal plates, free 

 or united in part, with or without accessory plates in the male. j± 

 strong terminal spur on the tarsi. 



There are only two species, with several varieties, in th^ ; genus, 

 J/, annulatus and M. louushu ryi . It was a study of the latter species 

 which he made in 1907 that caused Neumann to re-erect thi^- genus. 

 A study of both sexes of J/, lounshurgi made him conclude that it 

 was closely related to R. annulatus, which had always been causing 

 so much difference of opinion as to whether it should stand in a 

 separate genus, or form a sub-genus of Rhi pice pi talus. The fema^. 

 were so closely similar that they plainly could not be separated, v>'hile 

 in the males the absence of anal grooves and the circular form of the 

 stigmatic plates clearly sets them off from RhipicepJuilvs , although 

 they do not resemble each other in other details, such as in the form of 

 the anal plates. The new species made him decide that thev should 



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