APATURA I. 
Leilia differs from the other members of its group, in that the black marks in 
the cell of primaries, which in Celtis and Alicia are three in number, two of 
them being in the middle of the cell, on the sub-costal and median nervures 
respectively, and placed obliquely to the nervures and parallel to each other, 
are here reduced to two, owing to the central marks being united in one straight 
bar, perpendicular to the nervures. These bars are also separated by a white 
space, which is not the case in the allied species. A similar arrangement of the 
bars is seen in Clylon, except that in this the inner bar is usually sinuous in¬ 
stead of straight, caused by the joining of the two oblique marks at their ex¬ 
tremities. There are three ocelli on primaries of Leilia , as sometimes happens 
with Celtis, but in the former they contain eccentric patches of blue scales, as 
do also several of the ocelli on secondaries, a peculiarity observed in neither 
Celtis nor Alicia. On the under side the two lower ocelli on primaries contain 
similar blue patches, and the uppermost one a patch which is partly blue, partly 
white. The spots on the disk on upper side are white and distinct. The color 
of this side is nearly that of Alicia, of the under side different from either that 
or Celtis, the basal part of primaries being castaneous, instead of light gray- 
brown, and the remainder of both wings chiefly of a pearl-gray, suffused toward 
the hind margins with pale blue. In Celtis the prevailing hue is gray-brown, 
sometimes wholly pink-tinted, and of Alicia gray-white, tinted with purple. The 
antennae also are ferruginous above and below, with the slightest indications of 
annulation near the base ; these organs in Celtis are fuscous above, yellow 
beneath, and the fuscous portion is distinctly annulated with white from base 
to club. 
I regret having to figure this species without being able to give both sexes, 
as I aim to do in every case, but the difficulty of obtaining the butterflies of 
Arizona is so extreme that years might elapse before I should receive another 
example. 
