94 INSECTS INJURIOUS TO FOREST AND SHADE TREES. 
the worm. As the grub is white it is liable to be overlooked and eaten 
with the chestnut; it makes its exit through a round hole in the shell. 
The larva is about a third of an inch long, cylindrical, and of nearly 
the same thickness from the head to the tail. It is completely footless 
as are nearly all nut-inhabiting larve. It is very difficult to rear this 
insect, as I have found after successive trials, and I am indebted to Mr. 
G. Mooney, of Providence, Rhode Island, for a fresh male and female 
beetle reared by him from chestnuts collected in Providence. On send- 
ing one of the specimens to Dr. G. H. Horn, he kindly identified it as 
Balaninus caryatripes. 
Dr. LeConte, in his work on “ The Rhynchophora of America,” remarks 
that the beak of these weevils ‘“‘ attains in length and attenuation the 
greatest development; in the male it is rarely shorter than the body; 
in the female it is frequently twice the length, and is used to make the 
perforation into which the egg is subsequently introduced. The great 
thickness of the husks of the fruits (chestnuts, walnuts, hickory nuts, 
&e.) depredated on by these insects necessitates a very long perfora- 
ting instrument to reach the kernel, upon which the larva feeds.” 
11. THE CHESTNUT CATERPILLAR. 
Devouring the inside of chestnuts the larva of a moth which grows to more than 
half an 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 gonvex side, the cavity which it makes being filled with little brown and 
whitish grains; and asmall hole is perforated upon one side of the nut at its tip, out 
of which a portion of these grains is protruded. (Fitch). 
Besides the chestnut grub or weevil, Dr. Fitch gives an account of 
this larva of a moth which he has found in chestnuts, but which he did 
not rear. 
The following insects also prey upon the chestnut: 
12. The larva of the American maple moth, Apatela americana Harris. 
13. The American white ant (Termes frontalis Haldeman) sometimes 
mines and wholly consumes the interior of chestnut fence posts 
and stakes, while the outer surface remains entire. It also mines 
old elm, pine, and other decaying trees, as well as the sills of 
houses. 
14, Lithocolletis castanewella Chamb. Larva in a blotch upper-surface 
mine in the leaves. 
15, Lithocolletis sp. Image unknown. Larva in tentiform mine in under 
surface of leaves. 
16. Bucculatrix trifasciella Clem. ‘The larva probably feeds on it. 
17. Tischeria castanewella Chamb. Larva mines the upper surface of 
the leaves. 
18. Nepticula castaneefoliella Chamb. Larva in crooked, linear mines 
in the upper surface. 
