1 xi ) 



of the larva of S. pavonia (' British Lepidoptera,' vol. iii, 

 pp. 325, 326) may give rise unintentionally to a false impres- 

 sion. The eighty larva? there spoken of as having been 

 received from Norfolk were reared by myself, and not, as 

 might appear from Mr. Tutt's account, by Professor Poultou, 

 who indeed to the best of my belief never saw them. I must 

 therefore assume the entire responsibility for the description 

 of their markings which Mr. Tutt quotes. In the succeeding 

 year I raised a fresh brood, numbering 120, from two of the 

 pink-tubercled larva? of 1885, the parent imagines being still 

 in my possession; 40 of these 1886 larvae were reared and 

 described by myself, and 80 were given by me to Professor 

 Poulton, who also duly noted their appearance in the last 

 stage, as recorded by Mr. Tutt. My original account will be 

 found in Trans. Ent. Soc. Lond., 1887, pp. 310, 311, having 

 been kindly incorporated by Professor Poulton, at my own 

 request, with his 'Notes in 1886 upon Lepidopterous Larvae.' 

 On reference to this account it will be seen that Professor 

 Poulton fully acknowledges the source of the description." 



The President exhibited some Pyrameis atalanta, some of 

 them lent by Mr. R. 8. Mitford, bred from pupa? found by 

 Mr. Harwood, Colchester, which emerged on the last half of 

 November and the first week of December last. Others in 

 large numbers which had emerged earlier presented no 

 remarkable features, but many of the later ones presented 

 considerable differences, especially the following: — On the upper 

 surface a patch or streak of blue or grey-blue scales on the fore- 

 wings above the scarlet band and just below the large white spot 

 on the costa ; also a narrowing and partial interruption of the 

 scarlet band by the invasion of black scales ; on the under-side 

 of the hind-wings a considerable increase of variegation, with 

 an increase of the light areas, especially towards the outer 

 margin. These effects are no doubt owing to the greater cold 

 to which the pupae were exposed than are the ordinary 

 summer pupa?, as they resemble in their general nature the 

 effects caused by artificially low temperatures ; two specimens 

 of which the President showed obtained by him ten years 

 since ; also, for comparison with these and Mr. Harwood's, a 

 specimen at normal temperature, and a specimen bred at 



