NOTES ON THE COLLECTION OF BRITISH MACRO-LEPIDOPTERA. 143 
Champion Collection, labelled ‘‘ Sherwood Forest, 1872.” One 
from the Meldola Collection, labelled ‘‘ Ross-shire, Fortrose, 
~ 1908, found in a spider’s web.” 
Plastenis retusa.—Sixteen specimens with data from various 
localities. 
P. subtusa.—Twenty-one specimens with data. 
Curhedia xerampelina.—Four specimens with data. One 
from Cornwall, one from Oxford, one from Cambridge, and one 
labelled ‘* Wales, 1888.” 
Ochria aurago.—A series of 40 with full data, showing much 
colour variation. 
Mellinia ocellaris.—Five specimens with data. One from 
the Meldola Collection, labelled ‘‘Twickenham, Sept. 1898. 
‘Barrett,’ vol. v, p. 397.” The other 4 are also from the 
Thames Valley. 
Orrhodia erythrocephala.—Three specimens, of which two are 
from the Spilsbury Collection with no data. The third from the 
Carden Collection (bt. Stevens, 1919), is labelled ‘‘ Kemp-Welch 
Collection.” 
O. rubiginea.—Fifty specimens with full data, nearly all bred 
specimens, from various collections. One from the Meldola 
Collection is of an almost uniform brown without the usual 
irroration. 
(To be continued.) 
NOTES ON LEPIDOPTERA AT ALTON IN 1920. 
By E. A. C. Stoweuu. 
(Continued from p. 123.) 
HETEROCERA. 
Once again the oak trees in Alice Holt were absolutely denuded 
by Tortrix viridana. This is, I am told, the third time in four 
years, and one wonders how the other spring oak-feeders survive. 
They certainly were scarce this year, though I took one Boarmia 
roboraria. It occurs to me that this may explain the cannibal 
propensities of Cosmia trapezina and Hupsilia satellitia, both oak- 
feeders by preference. Failing leaves they must needs eat the 
larve that have eaten the leaves. I find confirmation of this 
view in the fact that the closely allied elm-feeding Cosmie show 
no such inclination—at any rate, I reared a number of C. afjinis 
this year in a small jar without any ill effects. The sallow 
blossom yielded only common things, especially Y’eniocampa 
pulverulenta, which outnumbered everything else by twenty to one; 
however, I got a nice set of 7’. munda. Sugar in June at the 
foot of the Downs produced Xylophasia sublustris and common 
things, but in the Holt not an insect came, and in the autumn 
both sugar and ivy blossom were utterly devoid of insects, nor 
were there any larve to be beaten. Some moths came to light at 
midsummer, the best being perhaps Neuria reticulata, which came 
