Spiders and Their Near Relatives 



BB. No such spines under the tibia in either sex. Occurs 



in New Mexico. Eremobates jormicaria 



AA. Movable finger of the cheliceras of the male with but one 



large tooth, others much smaller. 



B. Movable finger of the chelicerae of the male constricted 



from below near the apical third. Occurs in Arizona 



and California. Eremobates californica 



BB. Movable finger not constricted from below. 



C. The movable finger near the apical fourth is suddenly 



narrowed from above, very large species. Occurs in 



Arizona. Eremobates cinerea 



CC. If the movable finger is narrowed from above, it is 



much before the apical fourth. 



D. Only slender hairs on the inner side of the femur 



and tibia of the palpus of the male. Occurs in 



Kansas, Texas, Colorado, and Wyoming. 



Eremobates pallipes 



DD. Spine-like bristles on the inner side of the femur 



and tibia of the palpus of the male. 



E. Upper finger stouter than usual, narrowed near 



the tip, a small tooth near the middle of 



the movable finger, tips of palpi black. 



Occurs in Texas and Arizona. 



Eremobates magna 



EE. Upper finger slender throughout, no tooth near 



the middle of the movable finger. 



F. Small conical spines on the under side of the 



tibia of the palpus of the male. Occurs in 



California and Arizona. 



Eremobates formidabilis 

 FF. No such spines on the tibia of the palpus of 

 of the male. Occurs in California. 



Eremobates putnami 



Genus 1 IEMEROTRECHA (Hem-e-rot're-cha) 



The members of this genus resemble Eremobates in having 

 the cephalothorax truncate in front; but differ in having the hind 

 tarsi three-jointed. The male has an elongated flagellum con- 

 sisting of two pieces lying along the inner side of the upper finger 



37 



