Fossil Butterflies: Memoirs of the American Association for the Advancement of Science, I.Scudder, Samuel Hubbard
Science
Fossil Butterflies: Memoirs of the American Association for the Advancement of Science, I.
Scudder, Samuel Hubbard
Butterflies, Fossil
Pl. III, figs. 14, 17, 18.
Upon a dark, uniform, probably blackish brown ground, the fore wing of
this butterfly was provided (in the female?) with three large spots,
three small spots, and two dots of a vitreous appearance, besides other
light streaks or powdery spots. The three large spots are probably
peculiar, in their present extent, to the female; they consist (Pl.
III, figs. 14, 17,) of one spot in the cell and one in each of the
lower median interspaces; the cellular spot crosses the cell, is
sublunato-quadrate, its exterior edge concave, extending from the origin
of the third superior subcostal nervule to just beyond the second
divarication of the median nervure, being directed in the upper half
of its course toward the base of the second median nervule; the spot
is narrower above than below, the upper half having an outward as well
as upward inclination, the lower margin straight, the interior margin
subsinuate, convex, reaching from midway between the base of the first
and second superior subcostal nervules to just beyond the middle of the
space between the base of the first and second median nervules. The
spot in the lowest median interspace is nearly or quite as large as the
previous, but longitudinal instead of transverse, and as broad as the
interspace; excepting for a little spur above on the inner side, which
runs a little way toward the base, the centre of the spot would lie just
below the second divarication of the median nervure, but by means of this
slight spur the spot extends baseward half way from the second to the
first divarication of the median nervure; at the outer extremity the spot
terminates squarely and next the lowest median nervule is two-sevenths
the length of that vein. The spot in the middle median interspace is much
smaller, subtriangular, filling the whole breadth of the interspace,
half as long again as broad, its inner tapering extremity situated just
below the final divarication of the median nervure. The three small spots
in the lower three subcostal nervules are seated one above the other,
their inner margins on a line and nearly at right angles to the costal
margin; they are quadrate and increase slightly in size below, the upper
one being square, the lower longitudinally oblong; they are situated
midway between the discoidal spot and the apex of the wing. The two dots
are situated one just above the other in the middle of the upper median
and subcosto-median interspaces, midway between the spot in the lower
subcostal interspace and the outer border; the lower is slightly the
larger, but not more than one-fourth the size of the uppermost subcostal
spot. Seated upon the submedian nervure, its centre below the outer edge
of the lower median spot, is a pale, powdery spot, twice as long as broad
and about one-third the width of the interspace; outwardly it merges
into the ground color; there are other pale spaces in the wing, looking
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