124 Transactions of the Boyal Society of South Africa. 
of the usual type, with G-joiated antennae. Eyes prominent, showing as 
black specks. 
Adult ? may reach 4 mm. in length, pinkish coloured at first and later 
purplish, with dense, white, powdery secretion. Lateral filaments short 
and fragile. Caudal filaments two in number, stout, may attain one-third 
the length of the body. Colour in boiling KOH purplish. Clear and 
stained the derm has small pores with sharp spinose hairs scattered over 
the whole body. In addition there are in the circum-anal region numerous 
smaller gland-pores without spines, and scattered, single, large pores, 
about three times the diameter of the latter. On the venter of the ante- 
penultimate segment in front of the caudal lobes are two long hairs 
(120 fj,), one on each side. 
u. 
I. 
II. 
III. 
IV. 
V. 
VI. 
VII. 
VIII. 
IX. 
130 
120 
110 
100 
90 
80 
70 
60 
50 
40 
30 
20 
10 
— 
P. qua 
esi tus . 
Antennae : In a series of 24 mounted adult ? specimens all showed 
the eighth segment with a pseudo-articulation, but in no single case could 
the articulation be considered complete. The measurements of the seg- 
ments are remarkably constant for the Pretoria material ; the Grahams- 
town specimens have usually slightly longer segments. It should be 
mentioned that the first segment is hollowed out in an unusual manner, 
being much narrower on one edge than on the other (-Fig. 19). Measure- 
ments of this segment might be given to range from 32 /z to 58 ^u, but that 
used is the middle measurement, i.e. that of the posterior margin. 
Eange of measurements of antennal segments : — (1) 42-54 ; (2) 52-63 ; 
(3) 44-64 ; (4) 22-34 ; (5) 30-51 ; (6) 20-30 ; (7) 32-40 ; (8) 85-102. 
