Genera and Sjtecies of Araneidea. 37 



bristle-bearing tubercles, the longitudinal central rib also 

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

 the entire margin is studded thickly with small shining 

 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. 



Augusta papilionacea J sp. n. (PI. VII. fig. 6.) 



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

 the abdomen 6 lines. 



The whole of this very interesting and curious-looking 

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

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

 tarsi, tibias, 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- 

 pression on either side towards the occiput, and a well-marked 

 longitudinal groove from between the hind central eyes to the 

 thorax. 



The eyes 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 legs are short and tapering in form, and do not differ 

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

 stronger than the rest, and though there seems to be a little 

 difference between them in the actual lengths of some of the 

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

 those of the fourth pair are the longest, and the third pair are 

 the shortest ; all are furnished 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 sharp bend at the base, almost 

 straight. 



