27 Araneae. 229 
equal to the tibia in length and the third has a pair of spines along the middle of the posterior (outer) 
surface, which are absent in the type. Length of cephalothorax -f- abdomen 13 mm. 
The nest consists of a long silken tube with pieces of wood, etc., attached. It was evidently removed 
from some dead wood or bark in which it had been hidden. 
3. Ariadna jubata Purc. 
1904, Pürcell, Trans. 8. Afr. Phil. Soc, Vol., XV, p. 156 (? from Tsabis, Little Namaqualand). 
Specimens. 2$$ and 3 juv. from Steinkopf, Little Namaqualand, July and August 1904. 
A minute inferior lower tooth is sometimes present on the chelicera. 
4. Ariadna insular is n. sp. 
Specimens. a) 62 examples, including many adult $?, from Possession Island off the coast 
of Great Namaqualand, May 1903. 
Colour in adult. Cephalothorax dark mahogany-brown, the head blackish at the sides; legs 
reddish-yellow, the two anterior pairs more reddish distally, all of them more or less infuscated in 
places, especially on the anterior sides of the femora, patellae and tibiae, the outer (anterior) side of the 
fourth pair appearing thus more strongly blackened than the outer (posterior) sides of the three anterior 
pairs; abdomen pale- yellowish, the posterior region all round, a broad mesial dorsal area and the area 
between the first pair of lung-opercula purplish-black ; sternum more or less infuscated, darker than the coxae. 
Cephalothorax as long as the tibia and 3 / 5 — 2 / 3 of the metatarsus of first leg, its width in front 
just behind the eyes about 3 / 4 (more or less) of the length of the first tibia. Ocular area moderately wide, 
the two median eyes together a little wider, however, than the distance between them and a posterior 
lateral eye. 
Legs clothed with blackish hairs, those of the anterior tibiae denser than elsewhere but not very 
long; fourth femur thicker than the first, the first tibia not much thickened, its width distinctly less than the 
distance between the posterior lateral eyes. Metatarsus I always decidedly and generally very considerably 
shorter than the tibia ; I and II with a single outer and inner row of stout spines below ; III with two 
inferior rows, besides an outer and inner row of 2 — 3 spines each ; IV with 1 subbasal and 1 — 2 distal spines 
below, the apical comb rarely composed of 3 setae and then distinct but generally reduced to 2 slightly 
separated spines and then not forming a distinct comb. Tibia I with an outer and inner row of 4 — 6 stout 
spines each below, and in addition an inner row or band of 3 (sometimes 4 — 6) and an outer of 4 — 7 (some- 
times only 3) spines on the sides; II as in I, but the outerside usually with fewer spines above the inferior 
row; III with several rows of spines, including a row of 1 — 3 on the innerside; IV with o — 2 spines below. 
Patellae unspined (in one specimen with an external spine on one leg of the first pair). Femora 
I — III with a medio-dorsal row of several spines and an outer distal row of 2 spines (often absent in III), 
I also with an inner distal group of 3 spines; II and III with 1 — 2 inner distal spines; IV sometimes with 
I — 2 spines. 
Chelicera with 3 small superior teeth and a small but distinct apical inferior tooth on inner margin. 
Length of cephalothorax -f- abdomen up to 14 mm. 
b) 2 examples from Lüderitz Bay (Angra Pequena), Great Namaqualand, January 1904. 
This very distinct species differs from all the other South African forms in having the apical comb 
of the fourth metatarsus rudimentary and generally not recognizable as a comb. 
29* 
