Spiders and Their Near Relatives 



have allowed themselves to be bitten by solpugids without 

 suffering anything worse than a passing pain from the wound. 



Among the more important works on the structure of these 

 animals are those of Dufour ('62) and Bernard ('96); and a general 

 work on their classification was published by Simon ('79). The 

 species of the United States were studied by Putnam ('83), and 

 an analytical synopsis of them is given by Banks ('00). Only 

 twelve species are known to occur in our fauna; but doubtless 

 more remain to be discovered. Our known species represent 

 three genera, which can be separated as follows: 



A. Anterior margin of the cephalothorax truncate. 

 B. Hind tarsi consisting of a single segment. P. 36. 



Eremobates 



BB. Hind tarsi three-jointed. P. 37. Hemerotrecha 



AA. Anterior margin of the cephalothorax subconical. p. 38. 



Ammotrecha 



Genus EREMOBATES (Er-e-mob'a-tes) 



In the members of this genus the anterior margin of the 

 cephalothorax forms a transverse straight line or is slightly 

 arched (Fig. 37); and the tarsus of the last pair of legs consists 

 of a single segment. 



In the males the fixed finger of the chelicerae is straight 

 and unarmed; and the flagellum is replaced by a strong bundle 

 of setae. 



The name Eremobates now applied to the genus replaces 

 the name Datames by which it has been commonly known; the 

 name Datames was first applied to a genus of walking-sticks, 

 Phasmidae, and can not be used for these solpugids. 



To the genus Eremobates belong eight of the twelve species 

 of the order known to occur in the United States. These are 

 separated by Banks ('00) as follows: 



A. Movable finger of the chelicerae of the male with two large 

 subequal teeth with denticles between them. 

 B. Some short conical spines under the tibia of the palpus 

 in both sexes. Occurs in Colorado and New Mexico. 



Eremobates sulpburea 



36 



