74 INSECUTOR INSCITI^ MENSTRUUS 



Riley) ; Bluff, Utah, June 12, 1898 (Mrs. H. M. Peabody) ;. 

 Southern Utah, July, 1900 (O. C. Polii , ; Williams, Ari- 

 zona, July 19 (Schwarz & Barber). 



Farther south a form occurs for which I propose the 

 name 



Cornifrons sideralis, new variety. 



Uniform iron-gray, the black and white scales evenly 

 mixed; inner line running out sharply almost to the discal 

 dots ; subterminal white mark narrow and straight. 



Type, female, No. 21155, U. S. Nat. Mus. ; Argus Moun- 

 tains, California, April, 1891 (A. Koebele). Also another 

 female from the same place and a third, in poor condition, 

 Arroyo, 10 miles west of La Luz, New Mexico, August 23 

 (Townsend & Cockerell). 



Again, in the north, another form occurs which may be 

 called 

 Comifrons praeia, new variety. 



Violaceous gray,' uniform, the ground not appearing white, 

 the markings fine and brown. 



Type, male. No. 21156, U. S. Nat. Mus. ; Pullman, Wash- 

 ington, May 10, 1895 (C. V. Piper). Also two males from 

 the same locality. May 11, 1898 (Wash. Exp. Station, Nos. 

 216 and 227). 

 5181,1. Cornifrons phasma, new species. 



White, with very pale ocherous shades, at base and in 

 median space ; inner line oblique, brown, not reaching costa 

 or margin ; no discal dot or a trace ; outer line brown, den- 

 ticulate, slightly excurved over cell ; a line of purplish shad- 

 ing from apex running to outer line below. Hind wing 

 white; a pale fuscous outer line close to terminal pale fus- 

 cous border. Expanse, male 25 mm., female 21 mm. 



Types, male and female. No. 21157, U. S. Nat. Mus.; 

 Los Angeles County, California, May (D. W. Coquillett). 



Cornifrons chlorophasma, new variety. 



Entirely white with a faint ocherous tint, all the markings 

 absent. 



