STATE AGRICULTURAL SOCIETY. 
825 
OAK. LEAVES. 
olive gray or greenish color with dull brownish yellow stripes and its shin 
rough from white granules ; remaining under ground in its pupa state 
through the winter, and the fore part of June producing a large ochre- 
yellow moth with thin and semi-transparent wings of a purplish red color 
throughout, with a very large white dot near the center of the fore pair and a 
faint darker streak ; its width 2.50 ; the male 1.75, with the fore wings 
hyaline except on their margin. 
For many years this worm has been common on the white oaks in my 
own vicinity, where the preceding has seldom been seen; and though the 
Yellow-striped oak-worm is so abundant only twenty-five miles distant from 
my residence, I have never met with it here. 
When full grown, these worms are two inches long and as thick as a pipestem. They vary 
somewhat in their colors, being oftenest obscure grayish yellow or grayish green, hut some¬ 
times blackish. Along the back is a broad stripe of this color, interrupted at tho sutures by 
pale brownish yellow, and with a narrow blackish lino on the middle of the back. Each side 
of this is a dull brownish stripe, below which is a broader one of the same color with that on 
the back, and having a whitish streak along its middle and the breathing pores in its lower 
margin. Eelow this is a second broad dull yellowish stripe, followed by a narrower dark olive 
green or blackish one, occupying the base of tbo prolegs, which below this stripe are black 
with a few small white granules, similar to those with which the surface is everywhere cover¬ 
ed. Tho six anterior legs and the head are dull olive yellow. In a transverse row on the 
middle of each segment are six short polished blaok prickles, two above and two on each side, 
those on tho hind segments being somowhat longer, and the two on the back are sometimes re¬ 
placed on most of the segments by black dots. The two horns on the top of tho second ring 
are the same as in the two preceding species. In smaller individuals, probably before tho 
last change of their skin, these horns havo been observed to have short branching prickles. 
When alarmed the worm holds its anterior end rigidly upward and for¬ 
ward, with the horns extending obliquely forward and outward. Several 
of the worms are usually found near each other on the same limb, up to 
the time of their leaving the tree. They mostly enter the ground early in 
August, though some individuals may be seen on the trees as late as the 
middle of the following month. 
325. TniPLE WIIITE-SPOT measure-woem, Amilapis triplipunclata, now species. (Lepi- 
doptera. Geometridoe.) 
Eating the leaves the fore part of June, a cylindrical gray measure- 
worm, 1.40 long, sprinkled with blackish dots and short lines, its head and 
neck slightly thicker than its body, each ring with a small squareish white 
spot above on its hind edge and with two blackish parallel lines on each 
side of this spot, its six anterior feet with a slight tinge of rose red; its 
pupa lying naked between the leaves, fastened by its tip ; the beginning of 
July producing an ash-gray moth thickly sprinkled over with black dots 
and small brown spots, with the broad hind border of both wings dusky, 
which color is bounded on its fore edge by a somewhat scalloped narrow 
black band running parallel with the hind margin and having on its hind 
side near the outer margin of the fore wings three large contiguous white 
dots, whereof the outer one is largest and most distinct; its width 1.50. 
This moth is so very similar in the cut and designs of its wings to the 
