STATE AGRICULTURAL SOCIETY. 
473 
HAZELNUT. TRUNK. 
at a particular point iu the tip of this ball-like bur, where its 
young can penetrate inwards and subsist upon the fruit. 
Dr. Harris (Treatise, p. 65,) speaks of a “ weevil grub” as 
being very common in the chestnuts of this country. But the 
worm which I have met with in these nuts is the larva of a moth 
and not of a weevil. It grows to more than a half inch in 
length, and is cylindrical and thick, of a dirty white color with a 
tawny yellow head, and sixteen feet. It eats the meat of the nut 
mostly at its tip and on its convex side, the cavity which it makes 
being filled with little brown and whitish grains; and a small hole 
is perforated upon one side of the nut at its tip, out of which a 
portion of these grains are protruded. I have not yet succeeded 
in rearing this worm, and am therefore unable to give a descrip¬ 
tion of the moth which is the source of this mischief. 
16. THE HAZELNUT —Corylus Americana. 
AFFECTING THE STALKS. 
20 1. Hazelnut bark-louse, Lecanium Corylifex, new species. (Homop- 
tera. Coccidse.) 
On the under side of the stalks and branches, adhering to the 
bark, a smooth shining hemispheric scale of various colors, from 
pale dull yellow and deep tawny red to black, many individuals 
showing a paler stripe along the middle and others with trans¬ 
verse black bands, the surface often sprinkled over with project¬ 
ing scales of a white wax-like substance. This is commonly 
small in size, being but about 0.14 in length, but some specimens 
are larger, measuring 0.20. A similar insect is common upon 
the European hazlenut, but is said to be of an orange-yellow 
color with red spots; I therefore infer it to be a different species. 
AFFECTING THE LEAVES. 
202. IIazelnut tree-hopper, Telamona Corxjli, Fitch. (nomoptera. Mem- 
bracidoe.) 
Puncturing the leaves and sucking their juices the latter part 
of J une, a triangular tree-hopper of a pale dull yellow color with 
