FOOD-PLANIS OF THE ARMY WORM. 11 
UMBELLIFER ©.— Daucus carota. (Carrot.) 
The four larve begun feeding on the second day; all transformed ; 
two died in the pupa state and the other two issued as moths. 
UMBELLIFER ©.—Pastinaca sativa. (Parsnip.) 
Of four larve, one died before transforming, one in the pupa state, 
and the other two issued as moths. 
Composit &®.— Lactuca sativa. (Garden lettuce.) 
Of four larvee, one was destroyed by the others before they commenced 
to eat; the others all fed to full growth, transformed, and issued as 
moths. 
CHENOPODIACE&®.— Beta vulgaris. (Garden beet.) 
Of four larve, after feeding slightly, three died after six days; the 
remaining one fed more extensiyely, transformed to pupa, and issued 
as an apparently healthy moth. 
LILIACE.—Allium sativum. (Onion.) 
All fed; two died as larve, and the other two completed the round 
and issued as moths. 
CONIFER ©®.—A bies canadensis. (Hemlock.) 
All died without feeding. 
THE ARMY WORM IN THE CRANBERRY BOGS OF NEW JERSEY. 
In June, 1882, there appeared on the Rockwood cranberry farm, near 
Hammonton, N. J.,an insect enemy which, according to the reports 
received from Mr. Rockwood, first destroyed the rushes and afterwards 
the young cranberry vines, thus doing considerable injury. Specimens 
sent by Mr. Rockwood proved to be the larve of a species of saw-fly, 
which, however, in captivity refused to feed on the cranberry vines. 
The following correspondence on this subject explains itself: 
HAMMONTON, ATLANTIC COUNTY, NEW JERSEY, 
July 4, 1882. 
To the Entomologist, Agricultural Department : 
Sir: I send by this mail a box of worms which have done me great damage on a 
cranberry bog. Some say that they are the Army Worm, but they did not come as 
anarmy. They are on several cranberry bogs around, but no one has seen them tray- 
eling. They are first found on the bog, and are found of all sizes, from } inch long to 
1} inches, and appear to have been hatched where they are found. The young have 
only been seen on rushes in the ditches where water stands or was. The old spread 
over the bog, eating first in preference grass, and then attacking the vines. They eat 
the new, tender growth. The young are transparent and greenish, the full-grown 
blackish. The large are active, moving rapidly. When touched they drop off the 
vines and curl up. They work toward evening and apparently in the night. They 
were first seen about June 20. We have killed some with Paris green, but they seem 
to be disappearing, even where no Paris green has been used. We find dead bodies 
where we have not used the poison ; but we still find the young and some old, although 
not as many as a few days ago. Please tell me what you know about them. 
Respectfully, CHAS. G. ROCKWOOD 
P. S.— We have been unable to find a grown one at the time of day we got those I 
send with this. They seem to touch nothing but grass and cranberry vines. 
