Revision of the Genus Erebia. 189 
yellowish markings at the base of the hindwing below, 
which somewhat resemble those of the 2? of H. manto. 
It is one of the most distinct of all the Asiatic Erebias, 
and has, so far, as I know, only been found in the Altai 
mountains, though it is also recorded (on what authority 
i do not know) from the Amur region. 
Erebia manto. 
This is a common but very variable species, always 
distinguishable by the markings of the hindwing below, 
which in the female are very distinct and unlike those of 
other species. 
In certain localities it has a small high Alpine form 
(pyrrhula, Frey.), which seems to be constant on the 
Albula pass in the Engadine, and at San Anton on the 
Arlberg pass. Similar small specimens occur occasionally 
elsewhere. 
In the Pyrenees it occurs in a very distinct form usually 
referred to cecilia, Hiibn. This is quite black without 
any markings in the male sex, and with only an indistinct 
band in the forewing below, and sometimes a trace of the 
. outer band in the hindwing. 
Something like this occurs rarely as an aberration in 
the Alps, but I have never seen one quite like the 
Pyrenean insect, and if the clasp were not identical, I 
should be disposed to separate this. As however I am 
not certain whether true manto occurs in the Pyrenees or 
not, I think it best to wait. 
Erebia ceto. 
Another common species, varying very much in 
different localities. On the south side of the Alps it 
usually has a well marked band of seven chocolate streaks 
of which three, four or five contain black ocelli sometimes, 
especially in the female, pupilled with white. On the 
Col de Lauterets in the Western Alps it is much smaller, 
and the markings are much less distinct, though of the 
same peculiar type. 
Erebia medusa. 
The opinion expressed by Strecker, which I quoted, as 
to the probability of epipsodea being the American form of 
