126 THE ENTOMOLOGIST. 
all of the large spring form, and exactly similar in appearance 
to the present moth, captured in June, 1874. 
A brood of E. pendularia that I reared in 1869 behaved in 
like manner, moths appearing from July 12th to November 
26th, being all the small form; and those pupz which 
remained over the winter, and came out in the spring of 1870, 
were of the usual type. 
It will be noticed that some of the larve of E. punctaria 
were longer feeding up than their brethren, and possibly 
these were the individuals that remained over the winter; 
still it is difficult to conceive the determining cause of the 
behaviour of the different specimens, and still more of their 
distinctness of form: the favourite hypothesis that heat 
hastens the development of the summer broods, and so 
prevents their feeding sufficiently to grow to their normal 
size, is here hardly applicable. In the instances I give the 
larvee were exposed to exactly the same influences, climatic 
and otherwise, and yet the two phases of the same brood 
were as well marked as in the forms of Selenia, which the 
heat hypothesis is supposed to explain. 
I merely take the above facts from my note-books, in the 
hope of calling forth correspondence anent the matter, 
encouraged by your remarks in the last number of the 
‘Entomologist’ (Entom. viii. 107) that you will be disposed 
to pardon their crudity. Everyone must agree with the 
spirit of your request, that collectors would give such extracts 
more frequently: however imperfect the observations, they 
may lead to enquiry; and they would at least be more 
interesting and suggestive reading than the usual Latin “ roll- 
call” of the slain, or those mythical accounts of the capture 
of re-set alien rarities in England, the exposure of the frauds 
and follies in connection with which have brought the 
British entomologist into such disrepute with true naturalists, 
and made him the subject of ridicule amongst the more sober 
and less gullible members of the craft. 
B. G. Core. 
The Common, Stoke Newington, N. 
May 11, 1875. 
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