84 THE CANADIAN ENTOMOLOGIST. 



and antennae wanting. But the yellow band was unusually well devel- 

 oped, and showed plainly that the species was not Asterias. Afterwards 

 by some years both males and females were received among the collections 

 made by the several Wheeler Expeditions, mostly in very bad condition. 

 Recently Mr. Neumoegen sent me several examples of both sexes, some 

 in fresh and beautiful state, and I shall find among them materials for a 

 Plate in But. N. A., Part viii. The males differ much in the discal band, 

 some showing this to be more than twice its breadth in others. In some the 

 spots are close together, forming a continuous band, divided by the ner- 

 vules only ; in others there is a wide black space between the spots. All 

 have these spots fading gradually out on the basal side, instead of being 

 clear cut ; and on the outer side, or towards hind margin, nearly all on 

 primaries are concave, sometimes a few straight, and rarely any of them 

 convex. On the under side there is an absence of the fulvous color 

 which characterizes all examples of Asterias, there being at most a slight 

 ochreous discoloration on the outer edges- of the spots of the band on 

 secondaries, and sometimes this is wholly wanting, or is restricted to the 

 two or three spots against cell. In fresh examples there is a belt of yel- 

 low scales on the black area between the marginal and discal spots of 

 primaries, such as is seen in Machaon. The female shows only traces of 

 the discal band, sometimes limited to three or four obsolescent spots on 

 the upper part of primaries, or perhaps entirely across primaries. In one 

 example under view these traces continue across secondaries, but in 

 others they are absent. In all, however, there is a large spot of yellow 

 more or less dense on costal margin of secondaries. So the spots of the 

 marginal row on secondaries seem never to be distinct in the female, and 

 often represented by a few scales only. In both sexes there is much 

 variation in the extent of the blue clusters on outer limb of secondaries. 

 In the original example, male, there is no blue except in a crescent over 

 the anal spot; in other males there are slight clusters on the posterior half 

 of the wing, and in others they extend quite across, but gradually dimin- 

 ish in size towards costa. In the female these clusters are larger and 

 more dense, and reach from margin to margin. On the under side the 

 discal band is always distinct on secondaries, and considerably more so 

 on primaries than appears on upper side. There is a little more of the 

 ochreous also on secondaries. 



Mr. Strecker, Cat. page 72, has entered this species as Asterias, var. 

 e. Utahensis, nob., and puts Bairdii, Edw. as a distinct species, but 



