(ar) 
Lepidoptera made by him at Tongue, North Sutherlandshire, 
between June 30th and July 13th, 1906, comprising the follow- 
ing species not hitherto reported from the county :—7'richiura 
crategt (larve), Hydrilla arcuosa, Phytometra xnea, Cabera 
pusaria, C. exanthemaria, Macaria liturata, Hybernia progem- 
maria, and H, defoliaria (larvee), Ephyra pendularia, Acidalia 
Jumata, Coremia ferrugata, Venusia cambrica, Cidaria prunata, 
C. suffumata, Cheimatobia boreata and C. brumata (larve), 
Lupithecia castigata, E. subfulvata, var. cognata, E. assimilata, 
EL. fraxinata, and Tanagra cherophyllata. The Exhibitor 
further remarked that the birch trees in the neighbourhood 
visited were entirely denuded of their leaves by the ravages 
of the larve of the Hybernide, on which again the Black- 
headed Gulls preyed in great numbers. It was noticeable 
also that the several species showed little tendency to 
melanism. 
MELANISM IN HastuLA HYERANA.—Dr. T, A. CHAPMAN, ex- 
hibiting fifteen specimens of Hastula hyerana, Mill., made the 
following remarks :— 
“Two months ago (December 5th, 1906) I exhibited to the 
Society a long series of Hastula hyerana, Mill. They were 
shown to illustrate how the species varied in two, not very 
strongly separated, localities. But as it seems possible to find 
many interesting details in this species, I now show a few 
specimens to demonstrate how it may vary under other cir- 
cumstances. The majority of those I had last year emerged 
in August, September and October, to the number of over 400 
specimens, in the pale (hyerana), and the dark (marginata) 
form. Of these I exhibit for comparison an average pair of 
each form, and the darkest pair of each form that emerged up 
to the end of October. In November four pale and three dark 
specimens emerged ; of these I exhibit three of the pale and 
two of the dark ones. These are very decidedly darker than 
the darkest selected from the earlier emergences. 
«Then there are four specimens that came out in December, 
all of them hyerana. Three of these are males, and are re- 
markably dark forms, like nothing amongst the preceding 
specimens. The @ is very dark but not extremely so. 
There were still four specimens that came out in January, 
