THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 
125 
to be “ Orchestes Rusci, a common spe- 
cies on birch.” — H. T. Stain ton; 
July 15. 
EXCHANGE. 
Erebia Cassiope. — I have very fine 
specimens of ibis insect to exchange for 
the following insects, as numbered in the 
Appendix to the ‘Manual’; — 9,42,48, 
52, 79 to 82, 90, 92 to 98, 101, 102, 109, 
111, 115, 117, 119, 121,122, 125, 127, 
128, 131, 132, 134, 140, 143, 144, 149, 
150, 152, 155 to 157, 170, 174 to 176, 
183, 187, 192, 194 to 196, 202, 203, 207, 
209, 210, 221, 222, 228, 238, 242, 244, 
246 to 250, 265, 275, 276, 287, 308, 311, 
313 to 315, 319 to 321, 325, 329, 330, 
331, 344, 349, 350, 355, 362, 375, 377, 
382, 385, 386, 389, 391,398,400,401, 
405, 407, 409, 417, 419, 421, 422, 433, 
435, 437, 445, 446, 448. None but 
good specimens, with entomological pins, 
will be required. Persons not receiving 
a reply within a week, must conclude 
their oflfers are not accepted. — Feedk. 
Bcckton, 6, HeecA Grove Terrace, Leeds; 
July 13. 
Apamea Connexa. — I shall he glad to 
supply this insect to any one who is in 
want of it. I should like to know soon, 
iso that I may take sufficient. — Rev. 
G. Rtjdston Reed, Sutton- on- Denvent ; 
July 16. 
Epione Vespertaria. — Having a few 
bred females of this species in duplicate, 
I should like to exchange them for some 
of the following : — 
Leucophasia Sinapis, 
Colias Hyale, 
Liinenitis Sibylla, 
I Apatura Iris, 
Erebia Cassiope, , 
Theda Pruui, 
... Betulee, 
Lycaena Arion, 
Hesperia Actaeon, 
Macroglossa Fuciformis, 
Lithosia Aureola, 
... Quadra, 
... Pygmaeola. 
These are not all my desiderata, but 
I should like some of the above first. 
I have also other duplicates too nume- 
rous to mention. Persons wishing to 
exchange had better write first. — J. Car- 
etngton, Clifton, York; July 16. 
Exchange. — I have duplicates of the 
following, numbered as in the Appendix 
to Stainton’s ‘Manual’; — Nos. 91, 137, 
172, 189, 279, 366, 571, 623. Persons 
wishing to exchange had better write 
first, staling what they have to spare. — 
H. Stephenson, Fisher Yard, Longroyd 
Bridge, near Huddersfield ; July 14. 
THE BIRCH MINER. 
To the Editor of the * Intelligencer,' 
Sir, — Will you oblige the entomolo- 
gical public by publishing the locality 
from whence the larva found mining 
birch leaves was obtained. Professor 
Westwood decides the larva to be that of 
Orchestes — probably O. scutellaris. This 
is a rare species, as, during the last 
twenty-five years, I have only fouud one 
spot where I could obtain the species, — 
namely, Corlon Common, near Lowes- 
toft, Suffolk ; there, however, it is taken 
on the elm. I have frequently taken the 
allied genus Tachyerges ; the species 
T. stigma on the birch, as well as 
O. pratensis, and also Rusci, but I don’t 
know whether they mine the leaves or 
