126 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



another on posterior cros.svein, a brown dot below middle of penulti- 

 mate section of fifth vein, a black spot midwa}^ between apices of first 

 and second veins extendino- from costa to middle of submarginal cell, 

 apex of wing from before apex of second vein to beyond apex of fourth 

 broadh' bordered with lilack, the inner edge of this border concave; 

 small crossvein near two-thirds length of discal cell and noticeal)ly 

 beyond apex of first vein, third vein bristl}* nearly its entire length; 

 length, 4 to 5 mm. Five males and three females. 



Habitat. — White Mountains, New Mexico (8,000 feet elevation, 

 Townsend), and Colorado (Morrison). 



7}/^>.— Cat. No. 6262, U.S.N.M. 



