Genus Erebia 



On the under side the wings are pale hoary gray, with the hind 

 wings adorned by a marginal series of small ocelli, black, ringed 

 about with yellow and pupiled with pale blue. 



Early Stages. Unknown. 



Hayden's Ringlet is found in Montana, Idaho, Wyoming, 

 and Colorado. 



Genus EREBIA, Dalman 



(The Alpines) 



" Then we gather, as we travel, 

 Bits of moss and dirty gravel, 



And we chip off little specimens of stone; 

 And we carry home as prizes 

 Funny bugs of handy sizes, 

 Just to give the day a scientific tone." 



CHARLES EDWARD CARRYL. 



Butterfly. Medium-sized or small butterflies, dark in color, 

 wings marked on the under side with eye-like spots; the 

 antennae short, with a gradually thickened club. The eyes are 



naked. The costal vein of the fore wing is 

 generally strongly swollen at the base. The 

 subcostal vein is five-branched; the first two 

 nervules generally emitted before the end 

 of the cell; the third nearer the fourth than 

 the end of the cell; the fourth and fifth ner- 

 vules spring from a common stem, the 

 fourth terminating immediately on the apex. 

 The lower radial is frequently projected in- 

 wardly into the cell from the point where 

 it intersects the union of the middle and 

 lower discocellular veins. The outer mar- 

 gins of both wings are evenly rounded. 



Egg. Subconical, flattened at the base 

 and at the top, the sides marked by nu- 

 merous raised vertical ridges, which oc- 

 casionally branch or intersect each other. 

 Caterpillar. The head is globular, the body cylindrical, 

 tapering gradually backward from the head, the last segment 

 slightly bifurcate. 



208 



FIG. 1 1 8. Neuration 

 of the*genus Erebia, en- 

 larged. 



