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Annals of the Transvaal Museum 
intermediate. The males of the different species differ greatly in the 
development of long hairs or of short stout setae on the legs. 
The following artificial key, based on the characters of adult males, 
is submitted as a rough guide to the species already known : — 
1. Femur of pedipalp slightly produced at the apex superiorly into 
two short processes (Wonderboom, Pretoria). .* P. nudus , sp. nov. 
With a single short “ horn ” at the apex of the palpal femur 
superiorly (Dunbrody) P. cornuta (Purcell). 
Femur of palp not produced at its apex superiorly into processes 2 
2. All the metatarsi scopulate distally below 3 
Some or all of the metatarsi not scopulate below 4 
3. Palps and legs all very hairy (Ngqeleni). . . .P. bulcocki, sp. nov. 
Palps and legs not hairy, but covered with short stiffish setae 
(Alicedale) .P, parvus, sp. nov. 
4. Metatarsus I and usually also II distinctly scopulate inferiorly 
near the apex 5 
Metatarsus I and II not scopulate below 8 
5. Tarsus II with 4 small outer spines, IV with a distal group of 
small spines internally and a double series of longer spines exter- 
nally (Johannesburg) ...P. nigriceps Purcell. 
Tarsus II without spines or with 2 on the outer side, IV with no 
external spines or 1-4 small ones and with none or only 1 or 2 
internally situated 6> 
6. Coxa III with a tuft of stiff setae post-ventrally : abdomen 
without long hairs above 7 
Coxa III without a tuft of stiff setae post-ventrally : abdomen 
clothed above with long hairs (Garstfontein, near Pretoria). 
P. pretoriae mihi. 
7. Patella of palp without spines (Bloemfontein) . . P. dreyeri mihi. 
Patella of palp with 2 spines anteriorly near the apex (Barberton). 
P. barbertoni mihi. 
|8. Tibia of palp elongated 
Tibia of palp rather short 
9. Posterior sternal sigilla very large, pear-shaped, confluent in the 
mid-line (Steinkopf) P. namaquensis Purcell. 
Posterior sternal sigilla apparently about a long diameter apart 
(Matjesfontein) P. pallidipes Purcell. 
10. Coxa III with a tuft of stiff setae on its posterior ventral border 
(Roodeplaat, near Pretoria) P. brevipalpis, sp. nov. 
Coxa III without a tuft of stiff setae on its posterior ventral 
border (Bedford) ..P. sororum, sp. nov. 
9 
10 
Spiroctenus (Homostola) zebrina Purcell. (Text fig. 7.) 
Mr. A. Roberts has taken specimens of this species from the following 
localities — Forbes Reef (Swaziland), Lake Chrissie, Steynsdorp, Lochiel 
(Erinelo District), from FJandspruit, Oshoek, and Tcvreden (in the Carolina 
* This may possibly prove to be the same as Ancylotrypa bicornuta Strand from 
Kap der guten Hoffnung.” 
f Ancylotrypa pusilla Purcell, from Hanover,, seems to come in this section. 
