( clxii_ ) 
of a very small oval patch of androconia situated at the 
upper end of the cell and generally slightly diverting veins 
6 and 7. In étus the colour is pale neutral grey to the naked 
eye, but under the microscope in a good white direct light 
it is warm brown, quite as brown as the usual scales but of a 
different tint, the androconia are decidedly shorter than the 
ordinary wing scale and not half their width, being very 
narrow, of almost equal width, but tapering slightly narrower 
just before the apex which is quite even and nearly straight ; 
they are placed at a slightly different angle to the surrounding 
scales and are attached to the wing membrane at a wholly 
different angle; whilst the former might be described as almost 
flat with the wing surface, these are inserted at a considerable 
angle, as nearly as I could measure it would be from 40° to 45°, 
with a very considerable overlap, so that not more than 
the terminal third to a quarter is visible. The difference of 
the angle and the fact that only the ends of the androconia 
are seen no doubt accounts for the difference of colour, and 
certainly accounts for the prominence of the patch. 
In w-album I was fortunate in being able to transfer the 
entire sex mark on to my slide, leaving only a few isolated 
scales attached to the membrane of the wing, and I found 
that the apices of the ordinary surrounding wing scales rise 
up slightly on to the edges of the brand, except at the front 
edge where the androconia overlie the other scales; it is also 
seen that the veins intercept the brand, running through it 
and causing a modification in the angle and colour of the 
scales; the true androconia are a sort of neutral grey, very 
closely and thickly set at angles different from the ordinary 
scales; those on the veins crossing the patch differ in colour 
from the rest, being rich dark brown, and appear to be 
attached to the membrane at a somewhat lower angle than 
the others, the androconia are fully as long as the surrounding 
scales, being set in a deep pit (as are all these brands more or 
less); they are narrowly elliptical in shape, tapering from the 
middle to a blunt point, and form a strong contrast to their 
surroundings. 
In Strymon saepium, the brand is larger than in the 
European species and of a blackish colour, showing a very 
