Genera and Species of Araneidea. 37 



bristle-beariiifj tubercles, the longitudinal central rib also 

 marked with a tew impressed spots or pock-like punctures ; 

 the entire margin is studded thickly with small sljining 

 tubercles of a similar kind, each furnished with a short bristle ; 

 and the two fore corners are armed with a strong but not 

 very sharp-pointed spine. 



Aufjusta papilionacea, sp. n. (PI. VII. fig. 6.) 



Adult female, length 4 lines ; breadth of the widest part of 

 the abdomen G lines. 



The whole of this very interesting and curious-looking 

 spider is of a yellow-brown colour, tiie abdomen being of a 

 paler and duller hue than the ccphalothorax — the tarsi, meta- 

 tarsi, tibiae, and genua of the legs being strongly suffused with 

 red-brown. The caput is large, of a somewhat quadrate form, 

 very slightly convex above ; the lateral edges of the upperside 

 behind the lateral eyes, as well as the fore margin, are rather 

 sharp and studded with small tubercles, each of which is fur- 

 nished with a short bristly hair ; the upper surface of the caput 

 is marked with small yellow-brown spots, of a deeper hue than 

 the rest of the surface, mixed with a few very minute red- 

 brown tubercles ; and there is a large shallow roundish de- 

 i)ression on either side towards the occiput, and a well-marked 

 longitudinal groove from between the hind central eyes to the 

 thorax. 



The ej/es are of a pale amber- colour, and not very greatly 

 different in size ; the four central ones form a square whose 

 hinder side is rather the longest ; this group is placed close to 

 the fore margin of the caput, so that the clypeus is almost ob- 

 solete; each of the lateral pairs of eyes is seated close below 

 the outer edge of the fore corner of the caput, on a quasi- 

 tubercular area formed by a deep notch or indentation in its 

 lateral margin ; the eyes of these lateral pairs respectively are 

 not contiguous to each other, being separated by at least, if 

 not more than, the diameter of one of them. 



The Ie</s are short and tapering in form, and do not differ 

 greatly in length ; those of the first and second pairs are nmch 

 stronger than the rest, and thT)ugh there seems to be a little 

 difference between them in the actual lengths of some of the 

 joints, the total length apjjcars to be as nearly as possible equal; 

 those of the fourth ])air arc the longest, and the third pair are 

 the shortest; all are furnisiu-d with hairs and bristles (of which 

 latter a few have a spine-like character) and terminate with 

 three claws, the two superior ones curved and pectinated, and 

 the inferior one, after its shaq:) bend at the base, almost 

 straight. 



