160 
Annals of the Transvaal Museum. 
HAEMAPHY SALIS LEACHI. AUDO UIN. 
The Dog Tick. 
Ixodes leacliii, Audouin (1827). 
Rhipistoma leachi-, Ivocli (1841:). 
Rhipistoma ellipticum , Koch (1844). 
Rhipicephalus ellipticus, Koch (1847). 
Rhipidostoma leachi , Karsch (1879). 
II aemaphy sails leachi (Audouin) (Neumann, 1897). 
Plate XVI ; figures a to m. 
Male. — Body elongate 3 oval, a little convex on the dorsal surface ; 
length 3 mm.; width 1.5 nun. behind the stigmata, narrower in front ; 
colour light reddish brown. Shield (XVI, l) covers all the dorsal surface ; 
when fully engorged sometimes a narrow line of the body is seen at. its 
lateral margins ; cervical grooves reach to level of coxae III, deep at first, 
then wide and shallow ; a deep marginal groove, which extends far enough 
caudad to form the exterior margin of the three extreme caudal festoons 
on each side ; eleven festoons present, hut not always distinct on the 
lateral margins ; punctuations numerous, fine, equal, evenly distributed 
over the surface. Ventral surface lighter coloured, yellowish, a few fine 
hairs and a few punctures • sexual orifice relatively wide opposite anterior 
edge of coxae II, an elongate plate, posterior of it; sexual grooves not 
very deep, diverging ; anus at posterior quarter of length, large, circular ; 
no anal plates present ; anal groove somewhat V shaped, ano-marginal 
groove short ; stigmatic plates short, comma shaped, with the lateral point 
well formed. Rostrum (XVI, a, h) with base rectangular, wider than long ; 
posterior angles of dorsal surface of base prolonged backward in blunt 
points; mandibles (XVI, c) short, digit with inner apophysis thick and 
stout, anterior end bent in a blunt tooth, a transverse process near anterior 
end ; outer apophysis short, stout, bearing three teeth, two terminal ones 
very small ; palpi longer than hypostome, triangular, article I very short 
and narrow, hidden under article II ; article II with outer angle very 
much prolonged, lateral and sharp, projecting beyond the base of the 
rostrum by half its width, bearing two retrograde points on its posterior 
edge, one dorsal and one ventral, provided with eight simple hairs on its 
ventro-median margin ; article III with three simple hairs on the posterior 
part of the margin ; its ventral surface prolonged backward in a 
strong, recurved tooth ; article IV cylindro-conical, transverse, relatively 
long, terminated by seven or eight hairs ; short hairs on the two surfaces 
of the palpi, hypostome short and wide with anterior denticles numerous ; 
on' each half are four rows of teeth, with ten or twelve in each row ; teeth 
strong, those in each transverse row almost equal ; the anterior ones a little 
smaller. Legs of medium length, same colour as body ; coxae (XV I, d) wide 
and nearly contiguous, a little hairy, with a wide blunt spine near postero- 
median angle ; tarsi relatively short ; tarsi I with pseudo-articulation at 
distal quarter of length ; all tarsi with a small terminal spur, caruncle 
