Superfamily Argiopoidea 



D. Posterior tarsi with two long, spatulate tenent 

 hairs beneath the claws. P. 574. Apostenus 

 DD. Posterior tarsi without tenent hairs. P. 575. 



LlOCRANOIDES 



CC. All tarsi with bundles of tenent hairs accompanying 



the claws. 



D. Tibiae and metatarsi of the anterior legs armed 



below with a few weak not elevated, spines; 



only three pairs of spines under each of these 



tibiae. P. 572. Syspira 



DD. Tibiae and metatarsi of the anterior legs armed below 



with many, very long spines, and a few elevated ones; 



at least five pairs of spines under each of these tibiae. 



E. Posterior row of eyes slightly procurved. P. 573. 



Chemmis 

 EE. Posterior row of eyes strongly recurved. P. 573. 



Zora 



AA. Tibiae of the first two pairs of legs with only two pairs of 



paired spines below. 



B. Anterior row of eyes procurved. P. 574. Agrceca 



BB. Anterior row of eyes recurved. P. 575. Hilke 



Genus SYSPIRA (Sys-pi'ra) 



In this genus the tibiae and metatarsi of the anterior legs are 

 armed below with a few weak, not elevated, spines; and the 

 apical segment of the hind spinnerets is moderately long and 

 subacuminate. The posterior row of eyes is recurved; and the 

 lateral eyes of each side are close together. 



Only a few representatives of this genus are known; two 

 have been described by Simon from Lower California, and one 

 by Banks from New Mexico. 



Syspira pallida (S. pal'li-da). — Only an immature specimen 

 has been described. This measured one half inch in length. 

 The cephalothorax is pale yellow, with a brown mark on each side 

 on the anterior furrows, and fainter ones on other furrows; the 

 abdomen is gray. There are three pairs of spines under the 

 tibiae of the first and second legs. 



The specimen described was found in a hole in the ground 

 at Mesilla Park, N. Mex. 



572 



