STATE AGRICULTURAL SOCIETY. 
823 
OAK. LEAVES. 
the walnut and other trees. On the apple-tree it is said to be more 
voracious and injurious than the common caterpillar, often nibbling the 
stems of the young apples and causing them to wither and fall. 
Other caterpillars and large thick-bodied worms occurring on oaks arc 
the larvae of 
The Hickory tussock both, § 183. 
The All ERICAS LAPPET MOTH, § 84. 
The.Io EMPEROR HOTH, § 81, and 
l'ho Polyphemus moth, § 181. 
322. Senatorial Dryocampa, or Yellow-striped oak-worm, Dryocampa senatoria, 
Smith and Abbot. (Lepidoptcra. Bombycidee.) 
In August, consuming the leaves, a black worm with four orange yellow 
stripes upon the back and two along each side, with two long black horns 
back of its neck and the rings of its body with two black prickles above 
and two on each side ; burying itself some five inches below the surface and 
the following June producing a large bright ochre yellow moth, its wings 
often freckled with blackish spots, the forward pair having a large white 
dot near the center and a faint purple streak from the middle of their inner 
edge to the tip ; its width 2.50 ; the male much smaller, 1.75 wide, and its 
wings of a much darker purplish red color, but with the same white dot 
and dark streak. 
These worms occasionally become quite numerous in particular neighbor¬ 
hoods. The latter part of August, 1858, I observed them in greater num¬ 
bers than I had ever before seen, in the cemetery at Saratoga Springs, 
where they had stripped most of the oaks of tlicir leaves, and were then 
descended from the trees, probably in search of food elsewhere, as few of 
them appeared to be grown to their full size. They were everywhere 
crawling sluggishly about, upon the surface of the dry sandy soil and up 
the sides of the monuments. In the paths, the dresses of the ladies sweep¬ 
ing over them, these worms frequently adhered to and crawled up them, to 
the great annoyance of every one and the alarm of the more timorous. 
Nor was this alarm altogether groundless. The prickles of these worms, 
if they happen to penetrate the skin, produce a stinging sensation like that 
of nettles and a slight redness of the spot, both these symptoms, however, 
lasting but a short time, as in the case of nettle stings. Relief in all such 
eases is speedily obtained by bathing the part with tincture of opium 
(laudanum), or with spirits of camphor. 
The larva when full grown is two inches long and about tho thickness of a lead pencil, 
cylindrie, and of a coal black color in stripes alternating with orange yellow, as follows: 
Along tho middlo of the back is a black stripe with a yellow ono of tho sarno width on each 
side of it. Outside of these is a broader black stripo followed by a yellow one on each side of 
the back slightly broader than the two middlo ones. Below these is another black stripo still 
wider than the ono above, and below this along tho sides aro two yellow stripes with a black 
ono between them in which tho breathing pores aro placed. Tho upper of these two last 
yellow stripes is somewhat wavy and less smooth than those on the back, and the lower one is 
often widened on the fore part of each segment, or sends off a branch downward and back¬ 
ward. Below this is an oblong yellow spot on each segment, which is sometimes lengthened 
to unite its anterior end to the lower yellow stripo. The under side is black with a yollow 
