THE ENTOMOLOGIST. 375 



town, I am desirous of knowing your opinion as to the 

 possibility of Bombyx processionea occurring in Dorsetshire. 

 — Entomologist es. 



It is quite p(5ssible 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 : T, 

 therefore, incline to think some other species is intended ; 

 probably Pygsera bucephala, Bombyx neustria, or Liparis 

 chrysorrhoea. 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. —jT/iowza^ 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 1 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 



