Avals' of the Transvaal Museum, 
161 
almost as long as the claws ; a double row of hairs on the ventral margin 
of the four last articles. 
Female (unengorged).— Body flattened, oval, wider behind, 3.5 mm. 
long’ by 1.6 mm. wide ; colour usually light reddish brown, sometimes 
whitish. Rostrum {XVI, e, f), legs and shield deeper coloured. 
Dorsal shield {XVI, m) elongate, oval sides convex, almost equal 
to half the length of the body ; punctuations equal, deep and 
regularly distributed over the whole surface ; no eyes present ; 
cervical grooves deep, then shallow, concavity outward, extending 
almost two-thirds of length of shield ; no marginal grooves 'pre- 
sent; cervical emargination deep, rectangular. Dorsal surface with numerous 
punctuations and a few very short hairs, with a prominent marginal 
groove, forming the inner margin of the three outer festoons on each side ; 
festoons almost square ; two short anterior grooves ; three long posterior 
grooves. Ventral surface with punctures and fine whitish hairs as on dorsal 
surface ; sexual orifice relatively narrow, transverse with a surrounding 
ring, elongated from front to hack, situated opposite coxae II ; sexual 
grooves not very deep, concave and diverging from their origin ; anal 
groove somewhat Y shaped ; a no-marginal groove larger than in male, 
•equal to about a quarter of the length of the body ; posterior festoons 
"very distinct ; anus large, circular, five spines on each valve and near the 
circumference ; stigmatic plates whitish, short, comma shaped, almost 
circular. Rostrum slightly shorter than that of male ; base a little shorter 
than that of the male, and posterior angles of dorsal base not quite so 
large ; porose areas well separated, rounded ; mandibles {XVI, g) longer, 
inner apophysis at digit not so thick as in male, and transverse process 
lunate in shape, opening outward ; outer apophysis with six teeth, two basal 
ones large, four anterior ones . small and arranged on a separate articulated 
apophysis ; hypostome as in male, only there may he five rows of teeth 
•on each half instead of four ; palpi longer and narrower than in those of 
male, no retrograde tooth on the ventral side of article II. Legs as in 
male, except the tarsi are longer, and the terminal spine is not so strong ; 
coxae are not so wide, and the spines are not so strong as in the male ; 
caruncle reaches only three quarters of the length of the claws. 
When engorged, the body is ovoid, of a bluish or greyish brown colour, 
and often attains a length of 11 mm. by 7.5 mm. in width. The grooves 
of the un engorged female disappear, and in their place we have faintly 
indicated dotted lines ; on the dorsal surface two anterior, short, and 
•diverging grooves, and three long posterior grooves, the median of which 
is straight, while the laterals have their convexity inward ; on the ventral 
surface are the genital grooves, ano-marginal grooves, and two very short 
grooves on each side of the ano-marginal groove ; on account of the swelling 
of the body the genital opening becomes shifted anteriorly to a position 
•opposite coxae I. 
Nymyli (unengorged). — Body elongate, elliptical ; colour dark chest- 
nut brown ; length 1.5 mm., width 1 mm. Dorsal surface hears a marginal 
furrow as in the female ; festoons well marked, three prominent dorsal 
grooves, deep and of equal length. Shield dark brown ; pentagonal in 
shane ; as wide as long ; widely rounded behind ; punctuations fine and 
evenly distributed ; no eyes ; cervical grooves not very deep, straight and 
-extending to posterior margin. Ventral surface lighter in colour ; festoons. 
