Genus Geirocheilus 
Early Stages. — Hitherto undescribed. 
Sofia has been found at Fort Churchill in British America, in 
the Yellowstone National Park, and in a few localities in Colo¬ 
rado. It is still rare in collections. The figure in the plate is 
that of the female type of Edwards’ ethela, ethela being a 
synonym for Sofia. 
(6) Erebia magdalena, Strecker, Plate XXV, Fig. 17, 6 
(Magdalena). 
Butterfly. —■ Uniformly dark blackish-brown on both sides of 
*the wings, with no spots or markings. 
Early Stages. —These have been partially described and figured 
by Edwards. 
This species has thus far been found only in Colorado at an 
elevation of from ten to twelve thousand feet above sea-level. 
There are two or three other species of this obscure genus, 
but they are rare boreal insects, of which little is as yet known. 
Genus GEIROCHEILUS, Butler 
Butterfly.— Medium-sized butterflies, dark in color, with light 
eye-like spots on the primaries and brown borders on the secon¬ 
daries. The antennae are short, with a gradually tapering club; 
the palpi are long, slender, compressed, well 
clothed with scales on the lower surface. The 
costa of the fore wings is strongly arched, the 
outer margin evenly rounded, the outer margin 
of the hind wings regularly scalloped. The 
costal vein of the primaries is somewhat 
thickly swollen at the base. 
Early Stages. — Unknown. 
(1) Geirocheilus tritonia, Edwards, Plate 
XVIII, Fig. 21, $ (Tritonia). 
Butterfly.— The wings of the upper side 
are dark brown, with a submarginal row of 
white-centered ocelli below the apex of the 
primaries. The secondaries are marked with 
a submarginal band of red. On the under 
side the fore wings are as on the upper side. The hind wings 
have the submarginal band purplish-red, irrorated with whitish- 
Fig. i 19.—Neuration 
of the genus Geirochei¬ 
lus. 
