Annals of the Transvaal Museum. 
159 
Female. — Bocly short, oval, wider behind, 7 to 8 mm. long by 4 to 5 mm. 
wide/; , blackish brown, with the exception of the dorsal shield ; the rostrum 
and the legs reddish brown. Dorsal shield [XVI, p (a)] very large, reaching 
almost to the middle of the length of the body, a short oval, the posterior 
margin emarginate by two shallow sinuses, which divide into three not very 
prominent lobes, of which the median is twice the lateral ones in size ; an- 
terior emargination for the insertion of the rostrum limited by two wide 
blunt points ; cervical grooves very short, transformed into two deep pits ; 
punctuations large, scattered in the anterior half, very fine and numerous 
on all the surface, which is rather shiny ; colour clear brick red on indivh 
duals from Natal, clear ochre yellow on female from Zanzibar, with two 
reddish brown spots occupying and bordering the two anterior cervical 
pits, two other irregular spots about the eyes (which are small and clear 
yellow) and on the lateral margin which precedes them two other irregular 
spots behind those of the cervical grooves. Dorsal surface of abdomen with 
a marginal groove very far from the margin, limiting more or less clearly 
the inner extremity of the eleven posterior festoons ; irregular grooves, one 
transverse, the other longitudinal, of which three are constant, a median 
and two close to it ; striations of integument very apparent, hairs abundant, 
whitish in the marginal grooves, yellow, purplish red and blood red in the 
posterior third, where they form two wide lateral clusters, some on the 
festoons. Ventral surface with large, whitish, scattered hairs ; sexual 
grooves rather separate, rendered deeper by the integumental prominences 
which come from the interval between the coxae, diverging at the level of 
coxae IV; anus rather anterior ; ano-marginal groove relatively long ; 
stigmatic plates greyish white, short, comma shaped. Rostrum with dorsal 
base twice as wide as long ; its posterior angles prolonged in short points ; 
colour of the shield in its middle ; porose areas deep, separate, a little oval 
and diverging, ventral surface wide, semi-circular ; mandibles long [XVI, 
p (5)] ; digit with inner apophysis with three points, the median longer ; 
outer apophysis with three successive teeth, the terminal one a little snb- 
ventral, the basilar one strong and a little bent downwards ; hypostome and 
palpi like those of the male. Legs like those of the male, except that the 
coxae are relatively feeble, increasing a little from first to fourth pair ; the 
inner tooth of coxae IV is stronger than, the outer. 
Hosts. — Rhinoceros (South Africa) and some other mammals, usually 
found on the genitals. 
Habitat. — Mozambique, Durban, Cape Colony, Zanzibar, Zambesi. 
Genus HAEMAPHYSALIS. KOCH. 
Rhipistoma,. Ivoch (1844). 
Gonixodes, Duges (1888). 
Opistodon, Canestrini (1897). 
Haemaphy satis, Ivoch (Neumann, 1897). 
No eyes, base of rostrum rectangular, elongated transversely twice as 
wide as long. Palpi conical, the second article forming a strong, conical, 
lateral, and basilar projection. Stigmatic plates circular or short comma 
shaped. Ventral surface of male without anal plates ; coxae I not bifid ; 
coxae IV in the male -of normal dimensions. Integument of uniform 
brownish colour. 
Only one species has been reported from South Africa. 
