THE CANADIAN ENTOMOLOGIST. 51 



secondaries very finely streaked ; the discal stripe on primaries pretty 

 regularly curved, a little convex outwardly, and projecting a spur along 

 submedian nervure ; on secondaries this stripe is wavy and crenated, but 

 not angular, projecting considerably opposite the cell ; the inner line is 

 nearly straight across cell and bends at a right angle towards base in the 

 subcostal interspace ; the ocelli of primaries scarcely larger than on upper 

 side, and pupilled ; secondaries have the ocelli disposed as in male. 



From 2 £ , i ^ . The species belongs to the Nephele group, and may 

 be distinguished, especially in the female, by the hoary under surface, with 

 distinct markings. 



Pholisora oricus. 



Male. — Expands i inch. 



Upper side brown, primaries somewhat dusted with gray scales, and 

 marked with black ; across the disk a series of long black serrated spots, 

 the points reaching nearly to hind margin ; on the upper three of these 

 are three minute white spots, forming a curved demi-band ; a small dull 

 gray spot on the serration which occupies the upper median interspace, 

 and a similar one near inner margin • across the wing near base a black 

 band, also serrated, the upper part only being clearly distinguishable ; 

 fringes of primaries brown, with a few white hairs ; of secondaries brown. 

 Under side glossy dark brown, a little dusted with gray ; the white spots 

 of primaries repeated. 



From a single example. This is near Alpheus, Edw., a New Mexican 

 species, but is smaller, and is without the whitish spots on under side of 

 secondaries, which are found in that species'. Alpheus also is without the 

 gray spots on upper side of primaries. 



Argynnis Nevadetisis, Edw., But. N. A., vol. i, pi. n. 



This species has long puzzled me, inasmuch as there seemed too much 

 discrepancy in size between the sexes as figured, and difference in the 

 coloration of the under sides. Except in a few species of Argynnis where 

 the coloration throughout differs in the sexes, as Diana, Leto, &c, there 

 is a very close resemblance, so that if two sexes of one supposed species 

 constantly vary in the coloring of under side, and in the form and size 

 of the silver spots, it becomes highly probable that there are two species 

 involved. And I am now satisfied that this is the case with what has 

 been known as Nwadc/isis, since examining the very rich series of examples 



