( cxl ) 



extensive series for reference, but among his notes on the 

 species were found the following statistics : — 



Polyommatus icarus females in the collection with more 

 than average blue ; total 58 specimens : — 



1904, number of specimens 8 = 42 % 



1905, „ „ 18 = 32% 



1906, „ „ 5 = 90 0/^ 



1907, „ „ 27 = 46% 



To which he would add from his own series : — 

 Total 72 specimens — 



1908 

 1909 

 1910 

 1911 



75% 

 66% 



72% 

 18% 



These figures, of course, proved little, owing to the varying 

 numbers for each year, the small quantity, and the selective 

 process to which, as cabinet specimens, they had been subjected. 



The fact that Continental specimens show so little blue, was 

 interesting, inasmuch as it agreed to a large extent with this 

 theory, viz. that a cold season produces a bluer form, therefore 

 the milder climate experienced on the Continent produces an 

 almost unicolorous brown form. 



RuRALiD Aberrations. — The Rev. G. Wheeler exhibited, 

 on behalf of Mr. R. M. Prideaux, some aberrational forms 

 of Rumicia iMaeas, and three $ '* Blues," consisting of one 

 very dark specimen of Agriades corydon and two of A. thetis, 

 one being of the ab. ^irania, Gerh., and the other having the 

 forewings dark and the hindwings symmetrically of a pale 

 fawn-colour. 



Females of Agriades thetis and Polyommatus icarus.— 

 The Rev. G. Wheeler also exhibited the specimens of A. 

 thetis ab. rirania, Gerh., to which he had referred at a former 

 meeting. All were taken between Gomshall and Dorking and 

 were first-brood specimens of this year. Their peculiarity con- 

 sists in the ground-colour being of a dead black instead of 

 brown, these particular specimens however having a considerable 

 amount of blue scaling. 



