128 Transactions of the South African Philosophical Society. 



Abdomen yellowish, variegated with black, the hairs and spines 

 like those on the carapace ; the under surface whitish laterally and 

 with large dark area along middle ; the dorsal process thick, cylin- 

 drical, abruptly truncated at apex, asymmetrically coloured, its 

 length only about § that of the carapace. Portion of vulva which is 

 externally visible forming a broad transverse plate with parallel, 

 blackened lateral edges, straight posterior margin and somewhat 

 rounded anterior margin ; within the epigastric fold the plate is 

 broadly dilated towards each side behind. 



Sternum blackened laterally. Labium black, the tip and the 

 lateral margins narrowly blackened. Free portion of maxillce 

 blackened laterally but white internally below. 



Chelicera with a lateral and 2 anterior black stripes and with 4 

 teeth in the anterior and 5 in the posterior row, the fourth tooth 

 from the distal end being the smallest in each row. 



Legs yellow, variegated with black, with black spines and numerous 

 hairs, the under side of the femora of the second and third pairs 

 with a longer mane of reddish, white-tipped hairs. 



Total length (not including chelicera) 11-J mm. ; length of cara- 

 pace 4-9 ; length of abdomen 6|-, length to apex of tubercle 7f , width 

 3*6 ; length of first leg (from apex of coxa) 33, of fourth leg 16f . 



Gen. AVELLOPSIS, n. gen. 



Eesembling the Australian form Avella as described and figured 

 by 0. P. Cambridge (P. Z. S., 1877, p. 574, pi. lvii., fig. 10), and 

 differing from Menneus, E. Sim., in having the thorax dilated on 

 each side at the middle, the sternum broader and the abdomen 

 bituberculate near the middle above, but differing from Avella in 

 having the tarsi in both sexes cylindrical and quite unsegmented. 

 The head also is higher than in these two genera. 



AVELLOPSIS CAPENSIS, n. sp. 



Specimens. — 4 ? 2 , 2 $ #.', and a number of young (Nos. 748, 

 9187, 12330) from the Cape Peninsula (St. James, Camps Bay, 

 Bergvliet Flats, Kalk Bay Mountain) ( $ $ in March and April, $ $ 

 in March). 



$ 2 . Carapace slightly longer than half the metatarsus of first 

 leg, strongly dilated on each side just before the middle, being 

 strongly constricted in front of the dilation and much narrowed 

 posteriorly ; the cephalic region distinctly elevated and marked off 

 on each side by an oblique depression, its anterior surface rather 

 high, vertical, at least as long as half the length of the chelicera, its 



