( cv ) 



Report of the Royal Society Celebrations. 



The President read a report of the Royal Society's Celebra- 

 tion of their 250th Anniversary, which he had attended as 

 the Delegate of the Entomological Society. 



Exhibitions. 



The Rev. G. Wheeler exhibited on behalf of the Rev. F. E. 

 Lowe a series of Brenthis pales taken in the Heuthal, Bernina 

 Pass, on June 24th, 27th and 28th, 1912. Some were of the 

 var. isis and some of the 9 s of the ab. napaea, but the most 

 remarkable were very pronounced examples of the ab. suffusa, 

 Wh., both ^ and ?, some of the latter being almost completely 

 black. The greater part of the Heuthal is damp, much of it 

 marshy, and the ab, suffusa is found only in the wettest part. 

 The fact that this ab. bears no resemblance to B. arsilache, 

 which is also a marsh form, appeared to the exhibitor a strong 

 confirmation of his opinion that B. pales and B. arsilache are 

 distinct species. Mr. Wheeler had added the type specimen 

 of ab. suffusa, and a $, $, and underside of B. arsilache for 

 comparison. One of the ^ specimens in Mr. Lowe's series 

 corresponded with the $ ab. cinctata, Favre, the type specimen 

 of which was taken by the late Mr. A. J. Fison on the Dent 

 du Midi. 



Blue Females of Polyommatus icarus. — Mr. Wheeler 

 also exhibited on behalf of Mr. R. M, Prideaux a series of 

 unusually blue ?? of Polyommatus icarus, taken in the spring 

 of this year in the Westerham district. 



A short discussion took place on the cause of this extreme 

 coloration, in which Dr. T. A. Chapman, Messrs. G. T. Bethune- 

 Bakbr and A. H. Jones, Commander Walker, Prof. Poulton, 

 Rev. G. Wheeler and Mr. T. H. L. Grosvenor (who was 

 present as a Visitor) took part, but it was postponed for the 

 exhibition of further examples. 



Melitaba aurinia. — Mr. L. W. Newman exhibited a long 

 series of M. aurinia bred from two batches of ova laid by North 

 Cornwall $ ^ ) the series comprised several hundred specimens 

 and was exhibited to show the very small variation in such a 

 large number of this variable species. Mr. Newman also 



