1887.) 



221 



do not think enough attention has been paid to the migration of insects as the chief 

 source of supply of most of our species that occur in an erratic manner. I believe 

 there is a great deal in the erratic appearance of our insects, that migration has to 

 account for. Certain species (I suppose every one will grant) do migrate in immense 

 numbers, and these are generally those which are locally abundant. What is more 

 probable than that species, which have their natural homo in the South of Europe, 

 having arrived here, should fail to establish themselves in our changeable climate? 

 That they are found a few years in succession does not prove that our climate is suited 

 to them, but that their vitality is at its greatest and unimpaired when they arrive, and 

 that the following seasons may be suitable for their development. A. cratcegi will 

 probably become common again, but not, I believe, until we get a fresh stock from 

 the continent. I believe broader views on this subject are now taken by those British 

 Entomologists who study Lepidoptera as a scientific recreation, but, of course, such 

 opinions will never bo adopted by collectors to whom a continental specimen is 

 intolerable, even as a type for reference.— J. W. TuTT, Eayleigh Villa, Westcombe 

 Park, S.E. ; February, 1887. 



NOTES ON THE SECOND EDITION OF CURTIS' BRITISH 

 ENTOMOLOGY. 



BY U. T. STAINTON, F.E.S. 



That a second editiou by John Curtis of any portion of the 

 British Entomology existed was to me quite a piece of news. • 



Ilagen, in his Bibliotheca Entomologica, does not seem to have 

 tad personal knowledge of the fact, though he says : " Nach Percheron 

 ist von den ersten Nummern eine zweite Auflage erschienen." 



In vol. xvi of the British Entomology, on the page which imme- 

 diately follows the list of subscribers, a note occurs as under : 



" The following is a list of the contents of the letter-press of 

 folios 1 to 18, which have been reprinted and enlarged : 



Eolio 1 — 4 pages, 6 species described. 



Folio 10 — 2 pages, 3 species described 



Thus, to these 18 sj^ecies there are 66 pages of letter-press, 

 whereas in the original edition there are only 36 pages, showing an 

 addition of 30 pages, besides there being frequently additional matter, 

 even where the original allowance of two pages is not exceeded. 



The 18 species which attained this distinction of a reprint may be 

 arranged systematically as under : 



