572 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
tli*- third line on the fore wing is deeply i>ut qnite regularly sinuate, and near the 
eosta acutely dentate. It variee a good deal, especially in the tint <»t' the brown shade 
accompanying the third line. Expanse <>f wings, 1.4U to 1.55 in< 
J'MK PINK-STRIPED willow STAN-WORM. 
I)(iliniii oariolaria Guen. 
(Larva, Plate v, fig. 
The caterpillar of this pretty moth is one of the commonest inch 
worms to be found on the willow. 
The genus to which this caterpillar belongs was founded by Huebuer 
for a moth referred by G-uenee to Cahera. The species of Deilinia are 
distinguished from those of Corycia by the pectinated antennae, the two 
common lines, and the generally ocherons tint, though the females of 
h. variolaria are with difficulty separated from those of Corycta. From 
Acidalia the species differ in having pectinated antenme, in the want of 
a decided band ou the hind wing, and in the larger palpi. The species 
is figured on PI. 10, fig. 20, of Packard's Monograph of Geometrid 
Moths. 
The caterpillar occurred August 10 on the willow at Brunswick, Me. 
It pupated August 14, and the moth emerged from May 20 till June 6. 
The moths are seen flying among willows in June and July. We have 
also found the lame July 21, and from that date till the first week in 
September. 
Larva. — Body smooth, cylindrical. Head as wide as the body, flattened from 
above, especially in front; antenme pinkish. Green with a pinkish tinge; on the 
side of the head a lateral distinct deep pink line, sutures and upper side of the seg- 
ments pinkish. There are eight dorsal mediau spots along the abdominal segments. 
a central dark brown dot flanked on each side by a pale lilac patch. First pair of 
abdominal feet deep lilac; anal legs with a vertical anterior lilac line. Supra-anal 
plate large, triangular, with two minute tubercles. Length, 22 mm . 
Pupa. — Thorax moderately stout, at first greenish, finally becoming like the abdo- 
men, mahogany-brown ; terminal spine (cremaster) rather stout and blunt, ending 
suddenly in two large curved bristles with three minute slender much curved oneson 
eaeu side ; the basal pair situated about half-way between the base and the middle of 
the spine. Length, 10 mm . 
Moth. — Front of head deep reddish-ocherous ; white on the front edge ; palpi deep 
ocherous; antenme white. Fore wings with the costal edge rather full. Both wings 
strigated more or less thickly with brown ; sometimes the wings are pure white. In 
the male, the striga? (or short lines) are arranged in two parallel lines on both wings. 
Beneath, pure white, sometimes a complete black discal dot ou each wing. Fore and 
middle legs ocherous. Expanse of wings, 26 mm . This species differs from D. eri/tln- 
maria (Guen.). also common in the Atlantic States, by its white wings, which are 
often without lines, and by the deep reddish-ocherous front of the head. 
33. Hydria undulata (Linn.) 
(Larva, PL v, fig. 9.) 
The larvre were found on the willow at Brunswick, August 5, and for 
the colored figures on PI. v I am indebted to Mr. H. H. Wilder. The 
moth issued May 19, but as the specimen flew away before I pinned it, 
