17 
and keeps its burrow free from excrement, with which that of the 
other is always packed. When its retreat is opened, the cater- 
pillar creeps readily backwards and forwards, or lets itself drop to 
the ground by a thread. 
This species, or one which has not hitherto been distinguished 
from it, occurs also in peach twigs, as first shown by Mr. Glover, 
and afterwards by Profs. Riley, Comstock, and others; but some of 
the facts make it doubtful whether the peach twig borer and the 
strawberry crown-miner are really identical. I shall treat of it here 
under both heads, however, and will give first the facts relating to 
its injuries to the peach, following with an account of its work in 
strawberry fields. 
AS A PEACH TWIG BORER. 
The first mention of this species in the United States of which I 
have any knowledge, was made in 1860, in a paper on the Lepid- 
optera by Dr. Brackenridge Clemens, published in the fifth volume 
of the Proceedings of the Academy of Natural Sciences of Phila- 
delphia. On page 169 of that volume, Dr. Clemens describes it as 
a new species, supposing it to be distinct from the European species 
which had been previously described by Zeller. A larva was taken 
by Dr. Clemens, full-grown and about to transform on the limb of 
a plum tree; but he discovered nothing of its habits. 
The next notice of it occurs in the report of Townend Glover, 
Entomologist to the Department of Agriculture, for the year 1872, 
and published on the 112th page of the report of the Department. 
for that year. 
“In examining peach orchards in the neighborhood of the Mary- 
land Agricultural College, about the first week of May, almost all 
the young twigs of the trees were observed to be killed at the extreme 
point or end, for a distance of one to one and one-half inches, and 
the terminal bud entirely destroyed. On cutiing open these dying 
_ twigs, the injury was found to be caused by a very mimute cater- 
pillar, which, entering the twig near a bud, had entirely eaten out 
the pith and interior, leaving only its ‘‘frass’”’ and the exuding gum 
to mark the spot where it had entered. When confined in a glass 
case, after about a couple of weeks several of the larve left the in- 
jured twigs and formed very loose cocoons on the sides of the box 
or among the rubbish and old leaves lying seattered on the earth, 
and in about six to ten days, the perfect moth appeared. Speci- 
mens were forwarded to Mr. V. T. Chambers, of Covington, Ken- 
tucky, who is making a special study of our micro-lepidoptera, and 
he decided it to be Anarsia (Zeller) pruinella (Clemens), probably A. 
lineatella (Zeller), of Europe, the larva of which was described 
y Mr. Clemens as taken June 16, full-grown, and about to trans- 
fein on the limbs of a plum, but no food-plant.is mentioned. The 
tail of the pupa is attached to a little button of silk, in an exceed- 
ingly hight cocoon. There was scarcely a single young tree in the 
peach orchard examined that was not more or less injured by this: 
little pest, and at least as many as twenty to fifty injured twigs 
were found on some very young trees. After the insect leaves the 
