r 



Superfamily Argiopoidea 



are known from the United States alone. Of these, those named 

 below are the more common and more widely distributed 

 ones. The following tables for separating these species h>ive been 

 taken from more extended tables given by Chamberlin in his 

 Revision C90). 



TABLE OF THE MORE COMMON SPECIES OF PARDOSA 



Females 



A. Epigynal plate or area widest at anterior end, distinctly 

 narrowing posteriori)'; guide wider anteriorly than toward 

 apex (Fig. 731, a). P. 656. P. xerampelina 



AA. Not as above. 



B. Epigynum presenting each side of the guide posteriorly 

 a sharply delimited, relatively small fovea as long as 

 wide, the anterior region of epigynum scarcely de- 

 pressed. (Fig. 731, b). P. 655. P. stemalis 

 BB. Not as above. 



C. Lateral furrows with the shallow anterior fossae short 

 and narrow, behind these deepening and abruptly 

 widely expanding, becoming widest near middle of 

 epigynum, septum of guide elevate, its more de- 

 pressed transverse arms extending into excavations 

 in the inner face of the lateral ridges. 

 D. Transverse arms of guide bending backward, septum 

 of guide widest at posterior end, becoming gradu- 

 ally narrower toward the anterior end, its sides 

 substraight or but little curving (Fig. 731, c). 

 P. 656. P. grcenlandica 



DD. Not so. (Fig. 731, d, e). P. 656. P. mod'ica 



CC. Not as described under C above. 



D. Face of septum of guide abruptly expanded behind 

 into a large nearly circular plate, the diameter 

 of which is clearly greater than the length of the 

 part of epigynum in front of it. (Fig. 731,/). 

 P. 657. P. emertoni 



DD. Not so. 



E. Transverse arms of guide narrowest mesallv. 

 widening toward their outer ends. (Fig. 731, 

 g). P. 655. P. lapidicina 



651 



