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president’s address. 
and I have seen specimens of this, or a very closely allied species, 
from North-east Eussia ; but all the continental specimens that 
I have examined differ to some extent from ours, being decidedly 
brighter and more variegated in colour. This in itself would not 
amount to much, for many continental insects occurring also with 
us show a tendency to melanism in the insular form. But Mr. 
Doubleday, on seeing the Finland insect, and reading a description 
of its larva, was decidedly of opinion that it was distinct from 
though closely allied to our own, of which he had bred hundreds 
in former years. Subrosea was first discovered at Yaxley, on the 
borders of Whittlesea Mere, by Weaver, who took it in plenty 
about 1827. It was then lost sight of, being apparently very local, 
until in 1846 a collector named English, sent for that express 
purpose by Messrs. Bond and Douhleday, turned it up. Next 
year (1847) they went down themselves, and took it in profusion 
at sugar and at flowers, and in the following years they obtained 
abundance of larvae. Mr. Bond informed me that these were 
feeding not only on Myrica gale, as described by Guenee and 
others, but also on dwarf Sallow and Willows, and mentioned 
particularly that he took many on the Pollard Willow-trees 
bordering roads through the Fen. Absolutely no details of the 
extinction of this species seem to have been preserved, and 
Mr. Bond distinctly assured me in 1872 that he believed it to be 
still in existence at Yaxley, hut as it was then many years since 
he had been to look for it, this must be taken as merely an 
opinion. However, until the district of Whittlesea, Yaxley, and 
Holme has been thoroughly explored, it would be rash to be too 
positive of its extinction, especially as it showed so much power of 
adaptation to circumstances as to take to the Pollard Willows for 
food. Yery little entomological work has been tried in the district 
of late, but that little has not been very encouraging in its 
results. 
Following on these species, we may consider another which a 
few years ago was looked upon as certainly extinct. Tapinostola 
extrema or concolor is a small and little known Noctua, belonging 
to the group called Wainscots, which seems confined to a few 
