ARGYNNIS IV. 
black scales; tlie submarginal lunules are yellow and the spaces between the mar- 
ginal lines partially so, giving the effect of a double row of marginal spots on sec- 
ondaries; in the cell of primaries two transverse yellow stripes and nearer base a 
stripe composed of greenish scales; under side similar to male except that the yel- 
low is more decided and not golden and the margins of both wings as well as the 
apical portion of primaries much irrorated with black; the suhapical silver spots 
are also on a black ground; secondaries have the basal portion much obscured by 
a greenish-brown tint, and much irrorated with black, the belt between the two 
outer rows of silver spots being clear yellow and immaculate. 
From 5(?, 2?, brought from Arizona by the Exploring Expedition under 
Lieut. Wheeler, in 1871, but with no further intimation of their locality. The 
original specimen from which the description of the species was drawn was received 
by me in 1862, through the Smithsonian, and was labelled “Bitter Boot Mountains.” 
Until the present year (18721 it has been an unique in my collection and, so far as 
I know, not found in any other. But the species is so superb an one that I have 
not hesitated to redraw the plate. It is allied to Leto in many respects, in the 
general appearance of the upper side of the male, and in the colors of the female. 
But in the shape of the spots the female bears a curious resemblance to Diana. I 
regret that I am able to add nothing of its history. 
