thorax and the middle series, and twice as far from the former 

 as their own width ; whole ocellar field of about equal breadth 

 and height. Mandibles black, the inner surface and inner 

 border of front surface covered scantily with long black hairs, 

 the rest of the front and outer surface with short fulvous, 

 mixed with a few long black hairs ; longer than their common 

 breadth, the extremity with three triangular pointed teeth on 

 either side of the closed fang ; the latter pretty strong, nearly 

 half as long as the mandible, black, growing blackish castaneous 

 toward the tip. Legs and palpi luteo-castaneous, the first two 

 pair of legs a little duskier, the whole covered with short re- 

 cumbent asheh-gray hairs (giving the legs a grayish-brown 

 appearance) and scattered long black hairs, the former supplant- 

 ed by short blackish-gray hairs on the lower surface and the 

 lower half of the sides of the tibire and tarsi of the first two 

 pair of legs, and on the under surface of the tarsi of the last 

 two pair of legs and of the apical half of the palpi ; a few 

 black, straight, spinous bristles are scattered over all the fem- 

 ora and tibise. Abdomen ashy clay-brown above, with a few 

 scattered black hairs, and a conspicuous black or blackish, 

 irregular median band, extending from near the base to the 

 very tip, sub-continuous in a narrow median stripe, and as a 

 whole made up, on different segments, of transverse subcres- 

 centic spots twice as broad as long, convex forward, with fur- 

 cate lateral tips ; the broadest of these, from one third to one 

 fourth the width of the abdomen, occurs just in advance of the 

 middle of the abdomen, and there is but one large crescent in 

 front of and distant from tliis, but midway between them is a 

 transverse crescentic line ; on the posterior half of the abdo- 

 men, the median line is sometimes obliterated, and the contig- 

 uous crescents, becoming united at their tips, enclose paler 

 spots. Beneath, the abdomen is nigro-fuscous, and on the sides 

 bears a very broad, obliquely-curving blackish band, extending 

 from the middle of the sides at the base to the vulva, becoming 

 foint and narrow toward the latter. [Description fi-om about 

 a dozen females.] 



Measurements of a large specimen. Length 22 nnn. ; of 

 cephalothorax 10 nnn. ; breadth of same in front 5 mm. ; of 



