202 JOHN B. SMITH. 



characteristic maculation on the primaries is : a slender, somewhat 

 curved black basal streak ; strongly dentate, single median lines, 

 approaching each other in the submedian interspace and connected 

 by a large claviform, the tip of which actually touches the t. p. line ; 

 a series of inters paceal black dashes in which the s. t. line is marked 

 by white dots or scales ; a long, narrow, obliquely decumbent orbicu- 

 lar ; and a large, outwardly defined reniform. My specimens are 

 from Calgary and from British Columbia. The former are from 

 Mr. Dod, dated September 20th and October 11th ; the latter are : 

 1 from Roundthwaite, the other of Capt. Geddes collecting without 

 definite locality. 



Exhilarata is a bright whitish gray species in the male, the macu- 

 lation of the primaries clearly written, the secondaries purely white. 

 In the female the ground is more fuscous, powdery, the maculation 

 all obscured and smoky rather than black. The secondaries are 

 smoky fuscous throughout. The marked difference between the 

 sexes and the pure white secondaries in the male will distinguish this 

 species from yosemitce. My series consists of three males and four 

 females: Glenwood Springs, Colorado, late September and early 

 ( >ctober (Dr. Barnes); Pullman, Washington, October 10th to 15th 

 (Prof. Piper). 



The new species is characterized as follows : 



I'i>hi;i e.vliilarata n. sp. — Male. — Pale ashen gray, powdery. Head 

 darker, with a blackish frontal line. Collar with a narrow black line across the 

 middle. Patagia with black submargiual lines. Basal line not obvious. A black 

 basal streak running into the deep outward sinus of the t. a. line. T. a. line sin- 

 gle, black, slender, broken, strongly dentate, the tooth in the cell touching the 

 margin of the orbicular, that in the submedian interspace reaching nearly half- 

 way to the inner angle. T. p. line black, single, slender, dentate, more or less 

 broken, most conspicuous in the submedian interspace where it curves inwardly, 

 is preceded by a black shade and followed by a white one. S. t. line white, punc- 

 tiform, irregular, marked by linear or sagittate preceding and following black 

 shades, forming a diagonal series from the black shade in the submedian inter- 

 space to below the apex. Claviform broad, extending across the median space, 

 black margined. Orbicular oblique, oval, a little more whitish than ground. 

 Reniform concolorous, moderate in size, more or less completely outlined in 

 black. 



Female. — Maculation as in the male, but everything more obscured, less de- 

 lined, and the entire ground powdery and fuscous tinged. 



Expands 1.40-1.60 inches = 35-40 mm. 



Hub. — As stated above. 



