582 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
have always found it in those that spring from the trunk. Its mine is 
extremely long and very narrow, being only a track beneath the young 
and delicate cuticle of the branches sufficiently wide to accommodate 
the body of the miner. At first it is difficult to detect the same, but 
alter some months it is easily traced by the elevated line of reddish- 
brown matter that marks the course of it. Thus it is easily found in 
early spring before the buds have expanded, and the larva may be 
sought in April, and is easily reared. In the spring the larva is of a 
dark lemon-yellow color without markings, and at this time the larva 
can be seen through the cuticle of the branch. About the middle of 
May, or rather about the 10th of the month, the larva will be found 
banded alternately with red and yellow, with two black dorsal dashes 
on the second segment. (I regard the head as the first.) This is the 
indication that it has reached its maturity, and in a day or two it cuts 
the cuticle and leaves the mine to weave its cocoon, sometimes in the 
angle of a bud on the branch of which it has been feeding, and some- 
times on adjacent substances. 
In rearing this insect it is simply necessary to thrust the branches of 
the willow into wet sand contained in some convenient vessel and to 
protect them so that the larvae can not wander after leaving their 
mines. 
The perfect insect appears after a pupation of about a month, or, as 
is the case of one specimen specially observed, in twenty-six days. It 
may be found as an imago, therefore, about the middle of June. 
Moth. — Forewings dark fuscous, with a silvery white baud at the basal third of 
the wing, and a slightly oblique oue of the same hue in the middle, inclined towards 
the inner angle. Near the tip of the wing are dorsal and costal silvery white spots 
opposite each other. Behind the dorsal spot is a narrow, somewhat curved white 
streak, extending from the apical cilia to the middle of the wing. Cilia silvery 
grayish at the tips. Hind wings grayish fuscous. Antennae grayish fuscous. Head 
silvery white. Labial palpi silvery, the hairs of the second joint touched with fus- 
cous. Maxillary palpi dark fuscous. (From Clemens's Tineiua.) 
60. Batrachedra talicipomoneUa Clem. 
The following account is copied from Clemens : 
This is a very interesting "micro," not only in consequence of the 
specific resemblance it bears to the European Batrachedra praangusU^ 
but of the discovery of its larva by one of our most gifted and promis- 
ing entomologists, Mr. Benjamin D. Walsh, of Kock Island, 111. 
In the note which accompanied the perfect insects, Mr. Walsh writes: 
I inclose herewith several specimens of a moth bred from the Tenthredinidous gall, 
8alici8-})omum Walsh manuscript, and a single one from the Cecidomyidous gall. S. 
and the next is delivered to the tip of the wing, and receives an oblique discal vein 
from the last branch of the subcostal, which closes the disk. The submediau vein 
is simple. Head smooth, with appressed scales. Ocelli, ? Antennae one- 
third less long than the forewings. Labial palpi slender, ascending, not higher than 
the vertex; the second joint is scaly, the third smooth. Beneath the labial palpi 
are small, ascending maxillary palpi. Tongue naked, as loug as the fore coxa? and 
femora. 
