863 
No. 145.] 
The larva which occur in the walnut galls are of different sizes, the largest being 
0.025 long, of an oval form and a light yellow or yellowish green color, with dusky 
legs and antennic. Younger individuals are white, shining, and somewhat hyaline, 
with pellucid white legs. The antenna; are short and robust, consisting of two shprt 
thick basal joints and a longer terminal one of a conical form, and giving off a short 
bristle on one side near the tip. The legs are also short and thick. 
The wirtOLESs females, of which one is found in each gall, she being the parent 
of the multitude of larvae around her, measures 0.04 in length, or somewhat more. 
She is of a plump egg-shaped form, narrower posteriorly and flattened on the under 
side. The segments of the abdomen are much longer than those of the thorax, and 
are separated by impressed lines. The legs arc short, scarcely projecting beyond 
the outer margin, and with the antenme are blackish, the general color of the body 
being yellow, often of a dull or dirty tinge. 
' Trees are much disfigured by the excrescences upon the euds of 
the limbs which this louse produces, which show conspicuously 
after the leaves have fallen. It requires two or three years for 
them to decay and become obliterated, and in tfse mean time a 
new stock is annually added, for where these insects obtain a lodg¬ 
ment they continue year after year, stinting the tree in its growth 
and blasting its fruit. Though there sometimes grows upon such 
trees nuts which are full sized and appear externally to be fair 
and well formed, they are found upon cracking to be destitute of 
meals. 
It is quite probable that these insects may be expelled from the 
trees which they infest by rubbing the ends of the limbs with soft 
soap soon after the leaves put forth. Or a month afterwards, 
when the galls are green and filled with lice, by cutting off and 
burning all the twigs and leaf-stalks on which these galls are 
growing, the tree will probably be relieved from a*renewed at¬ 
tack the following year. 
AFFECTING THE LEAVES. 
Consumiug the leaves; white caterpillars with eight tufts of converging black hairs on the 
back and towards each end a pencil of long black (^ies on each side. 
The Hickory Tussock-moth. Hophocampa Carycc. Harris. 
Of the caterpillars of our State, one which will be most apt to 
he observed on account of its clean neat appearance, and the re- 
