68 



the whole of the remaining larvae, forty-five in number, 

 passed safely through hybernation, and by May 4th were 

 beginning to spin up ; the first moth appeared on June 2nd, 

 their order of emergence being — 



June 2nd, 3 plain, i banded, 

 „ 4th, 3 „ 



— thirty-eight in all, eighteen being of the plain form and 

 twenty of the banded. It will thus be seen that the propor- 

 tion of plain and banded forms in both portions of the brood 

 were very similar, nor was there any appreciable difference 

 in the size of the individuals or in the intensity of their 

 markings, each containing both strongly and faintly banded 

 examples. 



In point of sex, however, the proportion of females was 

 much greater in the later portion of the brood than in the 

 earlier, 70 per cent, of the moths emerging in the autumn 

 being males, as against just over 70 per cent, females of 

 those that emerged in the spring from the larvae that had 

 passed through hybernation ; but it should be noted that in 

 neither case did the whole of the larvae produce imagines. 



Mr. Garrett exhibited a living specimen o{ Da^ychira pudi- 

 bunda which had just emerged in the open. 



Dr. Chapman exhibited — 



1. Three forms of Polyommaitis {Ly 

 cana) corydon : 



(a) Switzerland, greenish blue 



(b) Spain, violet blue 



(c) Spain, white 



2. Two forms of Lyccena daman : 



(a) Switzerland, blue 

 (6) Spain, green 



3. Three forms of Lycccna hylas : 



(a) Switzerland, blue 



(b) Spain, blue 



(c) Spain, white 

 4.^Exceedingly dwarf Plebeius (Lyccena) ce^on from Switzer- 

 land, measuring only 18-5 mm. 073 inch in expanse. 



Each form being 

 representative not 

 J'of individual varia- 

 tion, but of geo- 

 graphical race. 



