Apatura celtis, Bd.—The Eyed Emperor. 
The larvse of this species may be found during the month of May, 
on the leaves of the hackberry [Celtis). When full grown they are a 
little more than an inch long, pea green, with a series of yellow spots 
along the middle of the back, and three yellow lines each side, the 
middle one undulating often obsolete on the anterior part of each 
joint, and containing a little lead colored dimple. The body largest 
in the middle, from which it tapers both ways, two horns at the anal 
extremity, and two branching antlers on the head. I took a 
specimen of this species in the College yard at Irvington, June 28, 
of the past season; yet the nearest hackberry trees, of which I have any 
knowledge, were more than two miles distant. The wings are pale 
russet gray, the outer half of the fore wings brownish, marked with 
about a dozen small white spots arranged in two lines, one or two 
near the summit oscellated with black and very small. The outer 
margin has a russet line, preceded near the hind angle by a black eye, 
centered w T ith yellowish red, the spot on the line w 7 ith the outer row T 
of white spots. The hind wings are traversed towards the middle by 
two indistinct curved lines of blackish gray, and two more of the same 
color near the the inner margin. These lines are preceded by a 
curved row of six black eyes, of which the second from the anterior 
part is the largest. Underside whitish, with nearly the same mark¬ 
ings as above. 
Apatura clyton, Bd. —The Tawny Emperor. 
The food plants of this speciesare the same as those of the E T md Em¬ 
peror, and the larvae are similar, but may be distinguished by the head 
being copal-yellow instead of black, and a dark mediodorsal line, and 
the middle of the three yellow lines on the side straight instead of 
wavy. 
Spec. Char. Imago .—Expanse of wings, 1.75 inches. Hind wings 
and basal part of fore wings, brownish yellow, the outer part of the 
fore wings, the outer border of the hind wings, and a zig-zag, sub- 
terminal line on the hind wings, dark reddish brown. Beyond the 
center of each wing is a row of spots, white in the front half of foie 
wings, yellow the rest of the way, and black on the hind wings. Be¬ 
yond this row, on the fore wings, are four white spots near the apex, 
and toward the hind angle a large black, eye-like spot, surrounded 
with the same color as the base of the wings, and three brown spots 
in the discal cell of the fore wings. Under side grayish brown, with 
the light of the upper side white. On the fore wings are two eye-like 
spots, surrounded with pale yellow, the apical one pupiUed with 
white; on the hind wings a row of similar spots, pupilled with blue. 
