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. 
Fig. i i 8.— Neuration 
of the'genus Erebia , en¬ 
larged. 
208 
