A Survey of the Scorinon Fauna of South Africa. 
139 
Bechuanaland, and the Transvaal into Mashonaland and to the west coast 
of Lake Nyassa. It is very common in the Transvaal, sometimes (Pretoria) 
occurring in the same localities as pugnax, but seems to be rare on the 
high plateau. According to Mr. Gr. van Dam, glahrifrons frequents stony 
kopjes, whilst pugnax prefers the low valleys. 
The Transvaal Museum has this species from the following localities : 
Pretoria District : Zoo Hill, Koedoespoort, Magaliesberg, Kaalplats, 
Wondeboom, Groedgedacht, Roodeplaat, Hartebeestpoort, Eosslyn, G-ezina, 
Mooiplaats, Derdepoort, Meintjeskop, Zwartspruit, Silverton. Rustenburg 
District : Rustenburg, Groenkloof, Zandfontein, Wolhuterskop, Bokfon- 
tein, Brits. Water berg District : Yygeboompoort, Waterberg, Pongola. 
Zoutpansberg District : Pietersburg, Shilowane, Leydsdorp, Turfloop, 
Selati, Griffin Mine, Munnicks Farm, between Sand and Nuanetzi Rivers. 
Barberton District : Hectorspruit, Steynsdorp, Komati River. Carolina 
District : Arnhemburg. Heidelberg District : Greylingspost. 
I am doubtful of the accuracy of Dr. Purcell's Kiniberley record ; we 
have the species from Dry Hartz siding (E. C. Wilmot), however. Krae- 
pelin records it from Port Elizabeth, but this must be an error. 
The species varies much in size, specimens from the Zoutpansberg 
District being much larger than those from Pretoria or from Maamiaans- 
hoek in the Waterberg District. There is a still smaller form in Mashona- 
land, represented in our collection from Salisbury (C. von Hirschberg) and 
f rom Marandellas (O. E. Kidwell). There is also considerable variation in the 
degree of coarseness in the granulation of the last sternite and first caudal 
segment inferiorly. In our specimens from Mamiaanshoek (C. R. Prance) 
those granules are decidedly coarser and fewer than in Newington examples, 
and a single male specimen from Doornkop near Belfast is also quite coarsely 
granulated. Dr. Purcell found that stridulatory lamellae were present in 
all Mashonaland specimens examined by him, but absent in all his Trans- 
vaal material. I find that these lamellae are absent in examples from 
Newington, Pietersburg, Pretoria, Steynsdorp, Arnhemburg (Carolina 
District), and from Serowe ; but present in examples from Salisbury, 
Marandellas, Dry Hartz Siding, Doornkop, and Mamianshoek. They are 
present in all the specimens (twenty-three) belonging to the Rhodesian 
Museum. 
In a single male specimen from Mochudi there is a single lamella on 
the left chelicera, but none on the right. 
According to Dr. Purcell's key, the tarsi of the last 2 pairs of legs 
may occasionally have 2 external spines below, but I have seen no 
examples of this amongst some hundreds of specimens examined. 
The first 6 tergites are smooth in the female except at the sides and 
on the posterior margin, finely granular in the male. 
Pretoria specimens of glahrifrons and of pugnax are markedly distinct. 
