Genus Brenthis 



Chrysalis. — The chrysalis is yellowish-brown, spotted with 

 darker brown spots, f hose of the thoracic and first and second 

 abdominal segments having the lustre of mother-of-pearl. 



This very pretty little species has a wide range, extending 

 f rom New England to Montana, from Nova Scotia tc Alaska, and 

 southward along the ridges of the Alleghanies into Virginia and 

 the mountains of North Carolina. 



(2) Brenthis triclaris, Hubner, Plate XV, Fig. 3, $ (Hub- 

 ner's Fritillary). 



Butterfly, 6 . — The male above is bright fulvous, with the 

 base of the fore wings and the inner margin of the hind wings 

 heavily obscured with blackish scales. The usual dark markings 

 are finer than in the preceding species; the black marginal borders 

 are not so heavy. The submarginal spots are relatively large and 

 distinct in most specimens, and uniform in size. The light spots 

 of the under side of the median band of the hind wings show 

 through from below on the upper side lighter than the ground- 

 color of the wings. On the under side the fore wings are fulvous, 

 tipped with ferruginous. The hind wings are broadly ferrugin- 

 ous, with a couple of bright-yellow spots near the base and a 

 curved band of yellow spots crossing the median area. The 

 outer margin about the middle is marked with pale fulvous. 

 The spots on the under side are none of them silvered. 



$. — The female is much paler than the male in most cases, 

 and the marginal spots within the lunules are very pale, almost 

 white. The submarginal row of round black spots is relatively 

 large and distinct, quite uniform in size. On the under side the 

 wings are much more conspicuously marked on the secondaries 

 than in the male sex, being crossed by three conspicuous bands 

 of irregularly shaped yellow spots, one at the base and one on 

 either side of the discal area. The submarginal round spots of 

 the upper side reappear on the under side as small, slightly 

 silvered, yellow spots. The marginal spots are bright yellow, 

 slightly glossed with silver. Expanse, 6 , I. 50 inch ; ? , 1.60 inch. 



Early Stages. — Unknown. 



This ex 4 remely beautiful little species is found throughout 

 arctic Am-nca, is not uncommon in Labrador, and also occurs 

 upon the .oftier summits of the Rocky Mountains in Colorado 

 and elsewhere. It is, as most species of the genus, essentially 

 arctic in its habits. 



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