Annals of the Transvaal Museum. 
96 
Female differs from the type species as follows — Dorsal shield 
(IV, a, c) longer than wide, 1.27 mm. long by 1.1 mm. wide, oval; 
cervical and lateral grooves less marked; punctuations finer, not so 
deep, more numerous. Hairs not so numerous on the dorsal and 
ventral surfaces (IV , a, h) ; anal groove with branches closer, and 
forming an ellipse open behind. Rostrum (/l , c) not so strong, 
0.7 mm. long (instead of 0.85 mm. as in pilosus ) ; porose areas smaller, 
not so deep, more widely separated. Legs much weaker, especially 
the coxae. Colour generally orange red when young. 
Larva (unengorged). — Body oval in outline, longer than wide, 
widest behind coxae III ; narrowed at both extremities ; length 0.5 mm. 
(including rostrum), width 0.3 mm. Shield wide, covers all anterior 
half of body ; broadly rounded behind ; no anterior emargination for 
insertion of rostrum ; no cervical or marginal grooves ; a few large pits 
and spines present. Dorsal surface with seven grooves; no posterior 
festoons, but a few very large hairs on the margin. Ventral surface 
with three pairs of large spines in the median area between the coxae ; 
six large spines surrounding the anus, and several spines in the 
postero-lateral areas ; four posterior grooves ; anus very far posterior ; 
anal grooves surrounding anus behind ; ano-marginal groove 
present. Rostrum with base much wider than long; triangular in 
outline, with prominent lateral angles; inserted on a long neck , 
articulated below the dorsal shield ; palpi long and slender, article 1 
very small, article II constricted at the base, wide at the distal 
extremity, twice as long as article III ; hypostome very long and 
slender, with four rows of teeth, nine teeth to a row, the outer rows 
very large and sharp, the inner rows small and blunt; mandibles as 
in female. Legs very slender; coxae small, rectangular, coxae I 
with anterior angle prolonged so as to show on the dorsal side beyond 
the shield; each coxa with two posterior teeth, one on postero-lateral 
angle, and one on the postero-median angle; tarsi long and slender. 
Eggs. — Dark brown in colour; surface smooth and shiny; 
elliptical in outline; length 0.5 mm., width 0.25 mm. 
Hosts.- — Dog, cat, hedgehog ( Erinaceus frontalis) , bat (Rhino- 
loplius sp.) 
Habitat.— Transvaal : Leydsdorp, Moodies (Barberton), Pilands- 
berg Mountains (Rustenburg District), Lenokana (Marico District), 
Pienaars River (Pretoria District), Zoutpansberg Mountains (Zout- 
pansberg District), Piet Retief ; Durban. 
The principal host of this tick seems to be the dog\ Its complete 
life history has not yet been observed ; the adults usually occur more 
abundantly on the head and shoulders of the dogs. It may prove to 
be concerned in the transmission of piropla smosis of the dog when 
this question is fully worked out. In the Transvaal it is confined 
to low and middle or bush veld, and has never yet been taken on 
the extreme high grassy veld. As it also occurs at Durban, it will 
probably also be found all along the eastern coast of South Africa. 
