Genus Argynnis 
spots on both wings are much lighter. On the under side the 
wings are as in the male sex, with the basal area and the nervules 
of the fore wings redo Expanse, $ , 2.20 inches; $, 2.35 inches. 
Egg>— W. H. Edwards gives the following description: “Co- 
noidal, truncated, depressed at summit, marked vertically by 
twenty-two or twenty-three ribs, which are as in other species 
of the genus; the outline of this egg is much as in eurynome , 
the base being broad, the top narrows and the height not much 
more than the breadth; color yellow.’ 
Caterpillar .—The same author has given us a description of 
the caterpillar immediately after hatching; but as the young larvae 
were lost after being sent to Maine to be kept over winter, we do 
not yet know the full life-history. 
The range of this species is northern California and Utah, so far 
as is known at present. 
(34) Argynnis rupestris, Behr, Plate XII, Fig. 8, <3 ; Fig. 9, 
6, under side (The Cliff-dwelling Fritillary), 
Butterfly , <3 .—The upper side of the fore wings is deep reddish- 
fulvous, with the black markings very heavy. The fore wings on 
the under side are buff, shaded with red at the base and on the 
inner margin. The spots are buff, without any silver. The hind 
wings are buff, mottled with cinnamon-red, sometimes dark, 
sometimes lighter. The marginal belt is narrow, buff, en¬ 
croached upon by the darker color of the median area at the ends 
of the oval spots. None of the spots is silvered, except very 
light y in exceptional cases. 
$.—The female is much like the male on the upper side, with 
the dark markings much heavier, the ground-color somewhat 
paler, and the marginal row of spots quite light. The wings on 
the under side are more brightly tinted than in the male, and the 
marginal spots are more or less silvered. Expanse, $, 2.00 inches; 
2 , 2.20 inches. 
Early Stages .—Nothing is as yet known about the egg and 
larva. 
This species is quite abundant at a considerable elevation upon 
Mount Shasta, Mount Bradley, and in the Weber Mountains in 
Utah. 
(35) Argynnis laura, Edwards, Plate XII, Fig. 11, <3 ; Fig. 12 , 
2 (Laura). 
Butterfly , 6 .—The upper side is deep reddish-fulvous, with 
120 
