192 Mr. H. J. Elwes’s 
forms which have been defined by Oberthiir, Et. Ent. 
vill, p. 22, as pyrenea, inhabiting the Eastern Pyrenees, 
lefebvrei, the central Pyrenees, and astur, the extreme 
western extension of these mountains, called the Picos de 
Europa. I am unable to say whether these three races 
can be certainly defined, or whether they have inter- 
mediate variations and intergrades, but the latter case 
seems the more probable. All of them frequent steep 
stony slopes at from 6000-9000 feet elevation. The central 
form has the ocelli the most developed, and in the 
western form they are nearly obsolete. 
Erebia hewitsoni. 
This species, which I had previously treated as a form 
of melas, seems by the form of the clasp, as well as by the 
constantly present chocolate band on both wings and the 
more numerous and conspicuous ocelli, to be good and 
distinct ; it has more resemblance to evias than to melas. 
It inhabits the Transcaucasian region, where it is found 
at Borjoin, Abbas Tuman and in Suanetia in May 
and June. Dr. Chapman thinks it nearer to evias 
than to melas, and I am quite ready to agree with him 
in this. 
Hrebia stygne. 
A well-marked form of this, which seems to be preva- 
lent in the Valais of Switzerland, which I also found con- 
stant on the Spliigen pass, and which occurs also in other 
parts of Switzerland, but never, so far as I know, in the 
Black Forest or Pyrenees, is better worthy of distinction 
than many which have received varietal names. It has 
the rufous band on both wings above nearly or entirely 
wanting, though usually there is a trace of it round the 
ocelli, which are very small and inconspicuous. On the 
underside the band is also much reduced, the ocelli are 
small, and in the female the hindwing below is much 
more uniform in colour. 
This, though perhaps a local, is not an alpine variety, 
as I have from Zermatt, from Briancon and from Lansle- 
bourg, on the Mont Cenis, the normal form. I propose to 
distinguish this as var. valesiaca. 
