THE WEEKLY ENTOMOLOGIST. 
11 
In my notice above alluded to I 
have indicated that a female laid two 
eggs not far from each other on a dry 
leaf of Calamagrostis epigejos, that a 
fortnight after the blackheaded larvse 
came out, and that without hav- 
ing eaten anything they spun some 
silk threads above and beneath 
them, in the hollow of the rolled-up 
leaf, in which situation they remained 
till winter. Herr von Pritwitz only 
says that he bred the imago from a 
larva found on grass, and that its pupa 
resembled that of Linea. As this 
species does not occur in the environs 
ol Glogau, I had to content myself 
with observing the larvte of P. sylvanus 
and Lineola, which I afterwards des- 
cribed in the Isis. Here, at Meseritz 
the imago is anything but rare when- 
ever Arundo Epigejos is abundant. 
As I knew that that is the food of 
its larva, last year I succeeded in 
discovering some larvae, and fed them 
till they changed into pupae, which 
I took with me to Vienna, where two 
imagos made their appearance. But 
as I was prevented at that time from 
making a description of the pupae, I 
must wait till I have them again. 
The larva feads on that sharp grass 
Calamagrostis epigejos growing freely 
in dry, sandy, fir-woods. There is 
no doubt but it will also occur on the 
other hard grasses growing in similar 
sunny localities. For in that spot 
where I found it abundantly this year 
there is a depression in the ground, 
the bottom of which contains some 
water ; here Arundo phragmites 
grows in company with Calamagrostis ; 
and on the leaves of that plant, I 
found two larvte living in just the same 
way as on their usual food plant. 
They are very easily detected, by 
the irregularly gnawed edges of the 
leaves, betraying their presence, and 
they are found resting on the rolled- 
up portion of the leaves above or 
beneath the erosion. The rolling up 
of a leaf is effected by means of white 
silken cross cords, attached here and 
there, often leaving the cylinder open 
longitudinally, and allowing the larva 
to be seen resting stretched out at full 
length. A cylinder mostly contains 
one larva, rarely two. It has hap- 
pened that the two first young larvae 
I found on the 3rd. of May of this 
year, inhabited a single roll. The 
more they grow the less complete do 
they make their cylinder, and in the 
middle of June, when they are mostly 
full grown, they often repose on the 
flat surface of a leaf overspun with 
silken threads, most frequently drawn 
across here and there. The move- 
ment of the animal is very slow, and 
its ventral legs being very short, it 
continually spins threads in a zig-zag 
way to set its legs on. Sometimes it 
walks along the edge of the leaf ; and 
it then proceeds more quickly. When 
brought home hungry, it would creep 
up to near the top of a leaf and com- 
mence gnawing the edge of it, and 
biting it through, so that the pointed 
end of the leaf must fall off. As I never 
saw it consume the fine end of a leaf, 
I infer that it always bites it off, 
whenever it begins eating from the 
top downwards. After it ceases 
