186 Mr. H. J. Elwes’s 
Hrebia keferstent. 
This is an eastern form, of which I knew little nine 
years ago, but I have now received specimens from the 
Chamar Daban Mountains near Lake Baikal, where 
it seems abundant. It is nearest to H. melampus, from 
which it can usually (perhaps not always) be distinguished 
by the inner area of the forewing being more or less 
tinged with red-brown and the band on the inside being 
less well defined. The difference in the genitalia is 
however enough to decide on in doubtful cases. 
Erebia flavofasciata, Heyne. 
It seems almost incredible that a new species of Hrebia 
so distinct in appearance as this should be discovered in 
a part of the Alps which must have been often visited 
by collectors, but such is the case. It was found by 
Lieut.-Col. von Nolte on July 8, 1893, on the Campolungo 
pass between Fusio on the upper part of Val Maggia, 
and Faido on the Val Levantina in the Canton Ticino at 
about 7,500 feet elevation. 
It flies on the east side of the pass, on grassy slopes 
among rocks, in company with #. cassiope and gorge, and 
apparently comes out about the end of June, as some of 
the males were much worn on July 8. It is distinguished 
from £. melampus, to which it apparently comes nearest, 
and from all other species by a well-defined yellowish 
band on the underside of the hindwing, in which five dark 
spots appear. On the forewing below there are four 
similar spots, placed in a narrower darker band, which 
towards the hindwing becomes merged in the ground 
colour of the wing. On the upper side the bands are 
nearly or quite obsolete, well marked only towards the 
apex of the forewing. The spots above are in some 
specimens more or less obsolete, especially on the hind- 
wing. 
The female, which I have not seen, is said to resemble 
the male. 
Dr. Chapman informs me that there are two specimens 
of this species in Mr. Nicholson’s collection, which were 
taken by his father somewhere in the Upper Engadine, 
and there is little doubt that the species is not so re- 
stricted in its habitat as it now seems to be. 
The genitalia are distinct from those of £. melampus or 
any other species. 
