Superfamily Avicularioidea 



the first and second pairs of legs are scopulate all the way to the 

 base. Other characteristics are given in the table above. 



Two species have been described. 



Bracbythele theveneti (B. thev-e-ne'ti). — This species was 

 collected at Mariposa, Cal. The male measures about one 

 half inch in length. It differs from the following species in 

 having the four anterior eyes nearly equal in size. 



Brachythele longitarsis (B. lon-gi-tar'sis). — This species is 

 widely distributed in the Far West, being found from Idaho to 

 Lower California. The adult female measures from one inch to 

 nearly two inches in length; the male is somewhat smaller. The 

 anterior median eyes are about one third smaller than the anterior 

 lateral. 



This species digs a deep burrow, and lines only the upper 

 fourth or less with silk. 



Genus EVAGRUS (E-va'grus) 



The anterior lateral eyes are much larger than the anterior 

 median; and the posterior median eyes are distinctly larger than 

 the anterior median. The furrow of the chelicerae is furnished 

 with teeth only on the inner margin. In the male the tibia of 

 the second pair of legs is furnished at the base with a large 

 apophysis armed with spines. The following is our only species. 



Evagrus rubrigularis (E. ru-bri-gu-la'ris). — The female meas- 

 ures about two thirds inch in length, and is entirely black. The 

 species was described from a poorly preserved specimen col- 

 lected in Idaho. 



Subfamily BRACHYBOTHRIINiE (Brach-y-both-ri-i'nae) 



The Folding-door Tarantulas 



There are two small subfamilies of tarantulas, this and the 

 following one, that differ from the other typical tarantulas and 

 agree with the family Atypidae, in having the postabdomen 

 situated a considerable distance above the spinnerets; and in 

 that the furrow of the chelicerae is indistinct. But they agree 

 with the other typical tarantulas in not possessing distinct 

 endites. 



These two subfamilies can be distinguished by the presence 



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