Entomology in N.W. Spain. 153 
or other marking. The absence of the apical ocellus is 
however very rare, occurring in only three specimens, 
though several others have it so faint, that one feels sure it 
is only shining through from beneath. More or less shad- 
ing of reddish or ochreous occurs on the upper wings of 
about half the specimens. As regards the hind-wing it is 
remarkable that the nearest approach to dorus (type) 
occurs in the Casayo specimens, those from Brafiuelas, 
though so much nearer central Spain, being very like 
those from Vigo. A majority of the Casayo specimens 
have red ochreous colouring in the hind-wing, but of the 
others only about half, in most of these the colour does not 
extend outside the ocelli, and in not more than three or four 
does it extend so far as to leave only a dark line between 
it and the marginal pale line. In dorus the pale hind- 
wing may be said to have a dark subterminal line, in 
mathewt this line is so wide, and so much part of the 
general dark colour of the wing, that one notes rather the 
pale subterminal line beyond it. This is often absent, 
but there is usually some trace of it, especially in the 
Casayo series. 
The ocelli vary much, on the fore-wing the apical eye 
is almost invariably present, occasionally double (beneath 
as well as on upper-side). In several specimens there is 
an ocellus between veins 2 and 3, those in the inter- 
mediate spaces are perhaps not so rare, but are usually 
when present faintly indicated points only. The hind-wing 
is never quite spotless, the spot between veins 2 and 3 
being however the only one present in several specimens. 
There may be 2, 3, or 4 spots, and these vary much in 
intensity and may be black spots faintly ringed or may 
have a bright yellow circle; these are very striking 
in the darkest specimens, when these yellow circles 
are all that remain of the pale area of the hind-wing 
(an dorus). 
The under-side is not very variable, many specimens 
have the leaden metallic line, but in none is it so broad 
and bright as in dorus, and in only one or two does it 
appear on the fore-wing, where its place is often taken by 
a dark line, or dark shade broadened into a patch at the 
anal angle. On the hind-wing the area outside the eye- 
spots is of the same tint as the basal area. The spots are 
always much smaller than in my Spanish dorus, but vary 
a good deal in size, and may be reduced to three in 
