THE DRASSID.-E 



5 



OOOq 



oooo 



long. The eyes are arranged as in varicgata, the middle 



eyes being even more distinctly farther apart than they are 



from the lateral eyes. 



'^ Prosthesima atra. — Black, and 



less than a third of an inch long. 



It may be mistaken for a small 



Gnaphosa conspersa, but, besides 



the small size, the abdomen is 



usually longer in proportion and 



the head is narrower than in 



Gnaphosa. The color is usually 



black and less likely to be gray in 

 the young and rusty in the old, but the feet and 

 under side of the abdomen are sometimes yellow- 

 ish in the young. The eyes (fig. 14) are closer 

 together and the two rows more nearly of the 

 same length. In alcohol the cephalothorax I'-s- 14, 15- '6. 



Prosthesima atra. — 



and legs are blacker than in Gnaphosa and less 16, female en- 

 brown. The maxilla; (fig. 15) are a little longer '^^''g'^d four times. 



\ ^ J I b^' 14, eyes seen from 



and less rounded at the outer corners than in in front. i5,max- 



/-. 1 T-> 1 • T-1 T1 1 r- Wix, labium, and 



Gnaphosa or rythonissa. 1 he mandibles (fig. i 5) ends of mandibles 



are without the large teeth under the claw that ^™'" ^^^'^o\s. 



Gnaphosa and Pythonissa have, and they 



are turned forward more than in those 



genera. It lives on the ground and under 



stones. The cocoon is white or pink, 



attached by the under surface, with the 



upper side convex and thickened in 



the middle, sometimes with a little dirt 



attached to it. 



Prosthesima ecclesiastica. — Black, with 



Fig. 17. 



Fig. 18. 



white markino-s along the middle of the Prosthesima ecclesiastica.— 



° ^ _ Upper and under views of 



back. One-third of an inch long, a little female enlarged four times. 



