Neiv Genera and Species of South African Spiders. 139 



along a considerable tract in Gordonia to the North- West of Upping- 

 ton, between this town and the Molopo Eiver. 



Very like S. sclireineri, Pure. (Ann. S. Afr. Mus., vol. hi., p. 32, 

 1903), but larger, and differing besides in the following respects : — 



Colour of anterior legs more reddish-yellow, the distal segments 

 red ; carapace reddish-yellow, the head orange-red ; abdomen with a 

 row of transverse black patches on each side above, producing a 

 transversely banded appearance, the short hairs between the bands 

 yellowish. 



Vulva with the anterior cavity very large, wider than the posterior 

 portion of the median area, the median area transversely grooved 

 both before and behind the constricted part, which is longitudinally 

 grooved (PL X., fig. 8). 



First leg apparently unspined, the tibia without a fringe of longer 

 hairs on inner side, tibiae II. and III. w T ith a couple of apical spines 

 below, IV. unspined. 



Length of carapace and abdomen 8J mm. 



Nests. — The webs of two nests which were sent to me by Dr. 

 Nobbs show that the nests of this species are constructed on the 

 same plan as those of S. sclireineri, Pure, (already described and 

 figured, loc. cit., pi. L, figs. 5-7), but on a much larger scale. A well- 

 developed side-chamber is present, but it was not possible to distin- 

 guish the tongue-shaped flap at the entrance to the hole in the 

 specimens at my disposal. The lobes of the lid are very much 

 longer and narrower than those of S. sclireineri, and according to 

 Dr. Nobbs the sand is removed from the edge at the end of each 



lobe for a short distance to form a semicircular groove thus ( w ), while 

 between these 4 grooves the edges are not distinguishable. It is 

 evident that in this species the spider crawls out from under the lid 

 at the ends of the lobes only, and not all round the edges, as is the 

 case in S. sclireineri. 



The nests were always found in the loose red sand of the desert. 



Gen. DEESSEEUS, E. Sim. 

 1. Dresserus angusticeps, n. sp. 



2 2 $ (No. 11693) from Stompneus, St. Helena Bay, Malmesbury 

 Div., collected by Mr. J. E. C. Goold in May and June, 1902. 



Allied to D. collinus, Pocock (Ann. Mag. N. H., ser. 7, vol. vi., 

 p. 323, 1900), from the Cape Peninsula, but differing in the folio wing- 

 respects : — 



Abdomen speckled with spots of white hairs above and lines of 



