11Q CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Cross-line dark, with white hair line outwardly, strongly sinuous 

 from just within the anal angle in a generally straight course to 

 a little less than one-third in from apex. 



Beneath: Primaries smoky with scattered black atoms along 

 the costa and on the disk; white discal dot conspicuous. Secon- 

 daries: as above, but a little lighter; discal dot more conspicuous, 

 cross-line less so. 



This species is quite remarkable for the almost absolute 

 absence of brown color. In only one of the three specimens 

 before me is there any indication of other color than black and 

 white, except as stated. Paratype No. a, shows slight tinges of 

 rufous in the outer area of the primaries both above and below. 

 In this specimen the median area expands a little on the inner 

 margin. Paratype No. b, has more the appearance of behren- 

 sarius Grossbeck. 



The species is closely related to behrensarius Grossbeck, and 

 may prove to be a form or race of that species. Its greater 

 expanse and general lack of brown color seem to set it apart and 

 make it worth a name. 



It is through the courtesy of Mr. E. P. Van Duzee that I am 

 privileged to describe this species, and a sense of gratitude 

 prompts me to dedicate this new species to him. 



Holotype, male, No. 746, Mus. Calif. Acad. Sci.; E. P. Van 

 Duzee collector, July 9, 1919. 



Paratypes, male, a, Mus. Calif. Acad. Sci., collected at Hun- 

 tington Lake, Calif., July 20, 1919, by E. P. Van Duzee, and 

 male, b, collection of W. S. Wright, collected at Mt. Lowe, 

 Calif., July 11, 1918, by E. Piazza. 



Type locality, Huntington Lake, Calif. 



