Revision of the Genus Erebia. 187 
Erebia christi. 
Ritzer, MT. Schweitz. ent. Ges. viii, p. 220, 1890, ¢. 
Schulz, Stett. ent. Zeit. lii, p. 359, 1892, °. 
The position of this newly discovered species is at 
present a little doubtful. It looks so near to some speci- 
mens of #. mnestva that I should have been doubtful 
as to its specific distinction if it were not for the genitalia, 
which show it to be different from all European species ; 
while its occurrence in quantity proves that it cannot be 
a hybrid between JH. cassiope and mnestra, of which it 
seems to combine the characters. 
Schulz, who first described the female, says that 
E. mnestra occurs in great numbers in the same place 
where he found £. chvisti, and after discussing carefully 
the opinions of Dr. Christ, of Ritzer, and of Dr. Staudinger, 
which he quotes, he comes to the conclusion that the species 
is more nearly allied to cassiope than to muestra, though it 
averages from a half to a quarter larger in size than 
E. cassvope. 
The only locality in which christi has been taken, so 
far as I know, is the Laguinthal near the village of 
Simpeln or Simplon on the pass of that name, where it 
flies during the first half of July on steep slopes covered 
with a rich Alpine vegetation between steep cliffs and 
stone shoots. : 
Erebia maurisius, BE. kindermanni, #. haberhauert and 
probably £. pawlowskyi and L. stubbendorfi form a group 
which comes nearest to #. pharte, and has a wide range all 
throughthe mountains of Central Siberia. Whether theycan 
be distinguished as separate species seems very doubtful,and 
the synonymy is difficult, because it is not easy to say 
from Esper’s figure which of the forms he knew. That 
however which has been identified with this figure by conti- 
nental entomologists is found in the Altai and mountains 
south and west of Irkutsk, and has a well-marked choco- 
late patch in the cell of the forewing above and a well- 
marked series of elongate brown spots on the hindwing 
below, which often shows a much paler central streak. 
E. kindermanni, Stgr., may or may not be the same as 
this. It was described from a single pair from the Altai 
in Lederer’s collection at a time when Dr. Staudinger says 
he did not know H. mawrisivs. No one has since discrimi- 
nated between the two, so far as I know. 
