72 BULLETIN UNIVERSITY OF MONTANA. 



in the intensity of the coloring of the under side of the wings and in the 

 distinctness of the maculation. 



The collection contains two from Missoula and three from Flathead 

 Lake. Cooley has specimens from near Bozeman June 27, 1900, at 6,800 

 feet, and July 12, 1900, at 8,000 feet. 



THE CHECKER-SPOTS. 

 Genus Lemonias, Fabricius. 



This group includes some of the smaller members of the Nyphalinae. 

 The color of the wings is sometimes black, with red and yellow spots; 

 out it is usually fulvous, with the fore wings broadly margined, especially 

 at the apex, with black, and crossed by many irregular lines of black. 

 About fifty species occur in this country. 



Key to Species. 



1. General color black, with a terminal border of red spots; spotted 



with red and yellow 2. 



General color red or fulvous, very little black 3. 



General color brownish black 4. 



2. Under side brick red with the yellow repeated, size 1.75 to 2.50 inches, 



45-64 mm. chalcedon. 



Under side brick red, the yellow wanting cooperi. 



Under side with small spots. brucei 



Smaller, about 1.50 inches, 38 mm., more red and yellow anicia. 

 Black above, a row of small, marginal, brick-red spots, size small 



taylori. 



3. Under side of fore wings fulvous, with a little yellow at the apex; 



hind wings with a great deal of yellow whitneyi. 

 Basal area black hoffmanni. 

 Under side red, often one row of yellow spots nubigena. 

 Under side of hind wings heavily and regularly banded with yel- 

 lowish white spots, possessing pearly luster acastus. 



4. Both wings with marginal rows of red spots leanira. 



THE CHALCEDON CHECKER-SPOT. 



Lemonias chalcedon, Doubleday and Hewitson. Plate IV, Plate I. 



Butterfly Male and female are much alike. The wings are black, 

 spotted with red and ochreous yellow. On the under side they are brick- 

 red with the spots of the upper side repeated, and in addition at the base 

 a number of large and distinct yellow spots. Expanse ma:e, 1.75-2.00 

 inches, 45-51 mm.; female, 2.50 inches, 64 mm. 



Early Stages The egg is pale yellowish when first laid, pitted at the 

 base, and ribbed vertically above. The caterpillar is black, with the 

 bristles projecting on the segments quite long. The chrysalis is pale 

 gray, blotched with brown. The food plants are Mimulus and Castilleia. 



Distribution It is common in northern California. In Montana is 

 has been taken abundantly at Missoula. One was captured at Geyser 

 Basin, National Park. 



