Review of the Genus Erebia, 221 
2. HE. alemena (Fig.18). This species, which 
has been variously treated, and referred to sedakovii as a 
variety, is quite distinct ; and, whilst the side-processes of 
the tegumen and the smallness of the extremity of the 
clasp place it in this section, the general form of the clasp 
has considerably greater resemblance to that of the next 
group. It has the flat, striated, truncate side-processes of 
the tegumen, very much as in FL. ethiops; the clasp is 
quite a fifth shorter than in x&thiops. The combined lobe 
and head are less than a fourth of the total length of the 
clasp. There is a short interval between the lobe and 
head without styles, which are larger than in xthiops, 
and on the lobe are large enough to suggest the glacialis 
group (IV). There are also some styles on the body or 
shaft. 
Group IV. The typical clasp of this group is that of 
E. glacialis, with the great triangular shoulder set at 
right angles to the very similar head, and the armature of 
very strong styles. In addition to the more typical 
glacialis and its immediate allies, I think #. tyndarus and 
epistygne are more immediately related to this group than 
-to any other; so I place them here, to avoid the multipli- 
cation of groups, the only alternative being to make a 
separate group for each of these. 
This group would therefore contain— 
a. 1. mnestra. 2. gorgone. 3. gorge. 4. glacialis. 
b, 1. tyndarus. 2. ottomana. 
c. 1. epistygne. . 
This would not be connected with group I through 
the two preceding groups, but more immediately, and 
therefore I place first, as being a more intermediate 
species than the others :— 
a. 1. EB. mnestra (Fig. 19). In the clasp of 
this species, the head and shoulder are well separated, 
though a little approximated as compared with manio, 
and each tends to have much the same outline as the 
other, though at right angles to it. There are some styles 
along the side of the lobe, reaching on to the body ; these 
rarely occur in JF. glacialis or gorge, nor are the styles so 
large and bold as in those species. 
2. EL. gorgone (Fig. 20). This has hitherto 
been held to be a variety of gorge, of which it looks like a 
