THE ENTOMOLOGIST. 375 
town, I am desirous of knowing your opinion as to the 
possibility of Bombyx processionea occurring in Dorsetshire. 
—Entomologistes. 
It is quite possible that Bombyx processionea should 
occur in Dorsetshire; but it is highly improbable that it 
should have paid periodical visits for twelve or fourteen 
years, and yet never before have come under notice: I, 
therefore, incline to think some other species is intended ; 
probably Pygera bucephala, Bombyx neustria, or Liparis 
chrysorrheea. Mr. Dale, of Glanville’s Wootton, one of the 
best entomologists living, must, I think, have been acquainted 
with so interesting and unexpected a fact as this singular 
caterpillar occurring periodically in his own country. 
Galls on the Elm.—This morning I found the accompany- 
ing galls upon some elm-trees in our neighbourhood. 
Thinking they would interest you, I send them for your 
acceptance. —Thomas Brown; 13, King’s Parade, Cam- 
bridge, August 8, 1871. 
I am much obliged; they shall be named and described in 
the next number of the ‘ Entomologist.’ 
Food of Carpocapsa pomonana.—Is it common for 
C. pomonana to feed on other things beside apples and 
pears? I have bred a beautiful male specimen from a 
walnut, which was brought to me last September: it spun up 
in the nut, and changed to pupa last June. I took great 
care of it, keeping it in a little box by itself, in hopes it was 
something new: it is a very fine specimen, measuring | inch. 
—W. West; 6, Green Lane, Greenwich, August 10, 1871. 
Migration of Aphides.—Allow me to thank Mr. Walker 
for his interesting note on the above subject (Entom. 354) ; 
and I think he has conclusively proved that the supposition 
I find current with some gardeners is erroneous, namely, that 
these insects travel in clouds for a considerable distance, as, 
for instance, from the country lying to the east of London 
into the western districts, so passing across the heart of the 
metropolis. We, in these suburbs, are apt to abuse the east 
as the source of much vapour and other atmospheric pro- 
ducts, which take their rise in the extensive Thames marshes, 
and are floated to us by the easterly winds; but we may 
cease to blame Kent and Essex for the Aphides which 
plague us in Middlesex and Surrey. The Aphis of the plane 
