Revision of the Genus Erebia. 205 
be a well marked local variety if not worthy to be treated 
as a species. Of this I have lately procured a good series 
taken near Zara by Herr A. Spada, and am able to dis- 
tinguish them certainly by the much darker colour of the 
underside, and the much less distinct marking of the 
veins on the hindwing below; in specimens from other 
localities these veins are pale grey throughout the wing, 
but in those from Dalmatia they are only faintly marked 
in the males, and in the females much less so than in 
afra. The average size also is larger, and the grey colour 
of the apex of the forewing above is more pronounced than 
in afra. 
Christoph says that the specimens he took in the Tekke 
country belong to this form; but I have seen none from 
this locality. 
On the two following pages is given the table previously 
referred to of the known species of Hrebia and some of 
the principal varieties arranged so as to present the facts 
- of their geographical distribution in a synoptic form. 
JUNE 29, 1889, 
