78 



deeper shade of brown than is found in zerene ; in fact in hydaspe 

 this shade at times is almost black; a comparison of Holland's fig- 

 ures of monticola Behr (serene Bdv.) PI. XIII, Fig. 7 and zerene 

 (hydaspe Bdv.) PI. XI V, Fig. 9 will show these points of distinction. 



A. purpurascens Hy. Edw. 



An examination of the types in the American Museum proves 

 that the $ and 9 types do not belong to the same species. The 

 single $ type from Soda Spgs., Siskiyou Co., Calif, (the other $ 's 

 from Sierra Nevadas cannot be considered as types) is undoubtedly 

 the dark form of hydaspe mentioned above; the 9 types from the 

 same locality on the other hand are 9 's of zerene (monticola) ; 

 they are partially silvered on the underside, a point mentioned in 

 the original description, whereas the true 9 's of purpurascens are, 

 as far as we can judge, quite unsilvered. From personal exper- 

 ience we know that in the type locality the 9 's of zerene fly at the 

 same time that the $ 's of hydaspe are on the wing, the 9 hydaspe 

 emerging two or three weeks later; the error is therefore easily ex- 

 plained. The $ type will hold the name and purpurascens will be- 

 come a racial form of hydaspe Bdv., connecting up the paler nimo- 

 typical southern form with the extremely heavily marked form of 

 Vancouver Is., B. C, rhodope Edw. 



A. IRENE Bdv. 



This seems to be a good species and not a variety of ritpestris 

 Behr. Dr. McDunnough has taken it at Castle Lake, Siskiyou Co., 

 Calif, in the early part of August at an altitude of about 6000 ft. 

 but it was not seen in the upper Sacramento Valley where rupestris 

 was taken flying in June ; it is apparently confined to higher altitudes ; 

 we have series from Truckee and Plumas Co., Calif. Wright's figure 

 under inornata of the underside of a 9 from Mt. Shasta (1. c. PI. 

 XVI, 137c) is this species but figures 137 and 137b of a $ and 9 from 

 Tenino, Wash, refer to some other species, probably the true hippolyta 

 Edw. The upper side rather resembles egleis in the paucity of black 

 markings but the maculation of the underside would apparently throw 

 it into the rhodope group. 



A. HALCYONE Edw.. 



The types of this species, 2 $ 's from Colo., are stated in the 

 original description to be in the collection of B. D. Walsh which was 

 destroyed in the Chicago fire ; the specimens labelled type in the Ed- 



