54 bulletin: museum of comparative zoology. 



Male (type). Length, 39 mm. 



Cephalothorax: length, 19 mm.; width, 17.1 mm.; length of pars 

 cephalica 13 mm. 



fem. lib. +pat. met. tar. total 



Leg I 18 mm. 23 mm. 13.3 mm. 8.6 mm. 62.9 mm. 



Leg II 17 21.2 13.1 8.6 59.9 



Leg III 14.2 18 13.3 7.3 52.8 



Leg IV 18 23 19.5 8.5 69 



Length of tibia I 13.8 mm. 



Female. Length, 48 mm. 



Cephalothorax: length, 19 mm.; width, 16.2 mm.; pars cephalica 

 in length 13 mm. 



fem. tib. +pat. met. tar. total 



Leg I 14.2 mm. 20 mm. 10 mm. 6.2 mm. 50.4 mm. 



Legll 23.3 17.1 9.3 6 45.7 



Leg III 12 15.1 11 6 44.1 



Leg IV 15.4 20 16 7 58.4 



Length of tibia I 12 mm. 



This is readily separated from other Central American and Mexican 

 species in which metatarsus I in the male is straight in having meta- 

 tarsus IV shorter than the carapace instead of being much longer and 

 in having that joint decidedly shorter than tibia + patella IV. 



Eurypelma hespera,^ sp. nov. 



Type.— M.C.Z. 48. 9. Mexico: West Coast. Captain Goff. 

 Ship Dooley. 



Parafi/pe.— M. C. Z. 59. 9- Mexico: West Coast. Captain 

 Goff. Ship DooLEY. 



Integument of carapace, sternum, and appendages chestnut. 

 Pubescence of carapace thick, brown of bronze lustre. Pubescence 

 of legs uniform, without lighter stripes. Bristles of legs and abdomen 

 of a more reddish cast. 



Eye-tubercle low. Eye-area very nearly twice as wide as long 

 (4.5 : 23) ; anterior and posterior eye-rows equal in length. Anterior 



' tairtpoi, wRStern. 



