12 Journal New York Entomological Society, f^'o'- xxiii. 



ment long- with the sides from about the middle nearly parallel to 

 the truncated end. Valve of the male long, about as in riniosa. 

 Uncus hooked at the end but not suddenly. Fore wings with the 

 basal cell narrower than in rimosa. The dorsum in this species is 

 black, but has a dull reddish appearance owing to its covering of rufus 

 hairs. There is a dark red, narrow, broken line on the head just 

 above the antennae, and the hind margins of the pronotum, mesonotum 

 and metanotmn are also dark red. The X in the type is black, but 

 in two of the paratypes it is dorsally touched with dark red. The 

 mid-dorsal spots so general on the mesonotum of species of Okana- 

 gana are absent. Beneath nearly all black with a patch of silvery 

 hairs each side at the base of the wings. The front is narrowly 

 lined with dark red about the transverse rugae. Fore femora black 

 striped with dark red ; the middle and hind femora and tibise more 

 red than the anterior pair. Opercula edged with red, also the 

 posterior margin of each abdominal segment. Uncus black, especially 

 above ; valve black on lower surface with the upper edge red. The 

 red markings on the body are not at all conspicuous. Venation of 

 all of the wings nearly uniform sanguineous, darkened and more 

 spread out over the cells at base. 



In addition to the type there are three paratypic males in the 

 author's collection, all collected at the same time and place by Mr. 

 Nunenmacher, and a small male from Napa Co., California, is in the 

 collection of the American Museum of Natural History. 



Okanagana mariposa new species. 



Type male, Mariposa Co., California, June i6, 1914. 



Larger than rimosa with rather narrow wings; largely black in 

 color and decorated with orange. 



Length 29 mm. ; to tip of the wings 42 mm., fore wing 8 by 

 35 mm. Head as wide as the anterior portion of the pronotum ; 

 front about as prominent as in rimosa; top of head lacking the 

 furrow present in rimosa on each side leading from the posterior 

 ocellus toward the eye. Front convex, the median sulcus narrowed 

 above, transverse rug.ie about as prominent as in rimosa. Pronotum 

 5.5 by II mm., the sides anteriorly not quite parallel and edged with 

 irregularly set teeth. (These might be reduced to sinuations in some 

 specimens.) Humeral angles shaped as in rimosa with the wrinkles 



