ABSTRACT OF PROCEEDINGS. 



FEBRUARY gth, 1905. 



Mr. Hugh Main, B.Sc, F.E.S., President, in the Chair. 



At the request of the President various members had 

 brought series of Hybcrnia defoliaria (male specimens) for 

 comparison. 



Mr. Rayward and Mr. Pratt exhibited series from Wimble- 

 don Common, comprising very dark forms, uniformly dark 

 forms, forms with dark bands, forms showing varied shades 

 of bands, forms with bands of very varied widths, and speci- 

 mens showing light bands but little differentiated from the 

 general ground shade, but in the majority the black or dark 

 brown colour was strongly evident in the bands. 



Mr. Crow exhibited series from Chingford very similar to 

 those from Wimbledon. 



Mr. Browne exhibited light-banded forms from Chisle- 

 hurst, and very dark specimens from Epping Forest. 



Mr. Hickman exhibited a few specimens from Chingford, 

 all light forms, and one with both basal part of fore-wing as 

 well as the band of the same shade. 



Messrs. Harrison and Main exhibited long series from 

 Surrey, Epping Forest, and Delamere Forest, each series 

 showing the same general variation, the extremes of all three 

 localities being pretty uniform. 



Mr. Goulton exhibited a few specimens from Addington, 

 one of which had an extremely wide central band, and 

 another in which the band was uniform and narrow. 



Mr. Tonge exhibited a very nice series from Reigate, in 

 which the markings were very sharply defined, and the 

 difference in depth of the various colours made a very pretty 

 contrast. This form only occurred in odd specimens among 

 the other series exhibited. 



A short discussion took place, and Mr. Tutt pointed out 

 that but little was known of the distribution of the species. 

 It was a well-ascertained fact that the males migrated in 

 large numbers, but how about the apterous females ? Various 



