289 



Hind-wings, smoky-gray with a slight browuish tiuge ; cilia the same but with a pale 

 hue jiloug their base and auother at their tips. Underside also smoky, but the 

 pale costal margin s rather wider than in the fore-wings. 



Jbdomen, o( the single ^ beior§ me is denuded by grease; genital ai^peudages very 

 peculiar, the stout pointed uncus projecting far beyond the lateral claspers, of 

 which there are apparently 2 pairs ; the upper ones, bulging and rounded above, 

 have attached to their lower edge, small supplementary processes, narrow at the 

 base, swelling towards their ends, and armed with a brush of hairs ; the lower pair? 

 somewhat spoou-shaped, narrower at their ends than in the middle and curving 

 slightly inwards. 



Legs, bone-color. 



Exp. ah, 36'n™. 



Habitat, Arizona. 



T.'IP^! Sf Mus. Wlsm. 



The addition of this interesting genus to the North American fauna rests on the re- 

 ception of a single <? in tine condition from the late H. K. Morrison. 



COSMOPTERYX Hb. 



Cosniopteryx nitens sp. u. 



Palpi, shining bronzy. 



Head and face, bronzy-browu. 



Antenna^, brown, the apex white and a single narrow white ring about j^g inch 

 from the apex. 



Fore-wings, brown, with two conspicuous golden spots at about one-fourth from the 

 base, the upper one scarcely separated from the costal margin, the lower one 

 somewhat larger and extended posteriorly ; at about the middle of the wing is a 

 straight transverse golden fascia with a slight rosy or coppery hue, preceding a 

 pale-yellow patch, which is margined by a broad oblique coppery-golden fascia 

 terminating iu a white streak on the costa. The pale-yellow patch is divided 

 longitudinally by a rather wide and conspicuous streak of black, extending to 

 the golden fascia on each side, and somewhat nearer to the costal than to the 

 ai^ical margin; the apical portion of the wing is brown, with a slender golden 

 streak along the base of the dorsal fringes, commencing beyond the oblique outer 

 fascia and terminating with some silvery scales at the apex. 



Cilia and hind-wings, shining bronzy. 



Abdomen, brown, with some shining metallic scales about the sides and anal seg- 

 ments. ' 



Leg-'i, brown, banded with silvery white ; spurs also silvery. 



Eup. ah, 10™'". 



Habitat, 2 specimens from Professor Fernald from Texas and 1 from the late H. K. 

 Morrison from Southwest Texas. 



Ty2}e, $, Mus. Wlsm. 



Cosmopteryx pulcherrimella Chamb. 



Chambers, before describing pulclierrimeUa, suggests that gemmiferella, clemensella, 

 and pidcherrimella Chamb. are all one species, and then proceeds to describe the latter 

 as new and distinct. From specimens in my own collection I am able to separate the 

 .species with the greatest facility, not only by the pattern and coloration, but also by 

 the position of the white rings on the antenuiu. These will be found to ijresent a con- 

 stant character, so far as my observations go, throughout the different North Ameri- 

 can species of this genus, which could easily be tabulated systematically. 



Cosmopteryx chalybaeella sp. n. 



Antennoe, brown, a white line along the side of the basal joint and running approx- 

 imately through half their length; apex white, with two or more white rings, pre- 

 ceded by a dark band before it. 



