138 



THE ENTOMOLOGIST S RECOKIJ. 



rare in some specimens, are, in this instance, so numerous that they 

 cover the whole of the upperwings, thorax, and abdomen. The effect 

 of this is that when the insect is looked at sideways it appears to be 

 perfectly white. Another strange point al)out this particular speci- 

 men is that the blackened nervures on the hindwings are continued to 

 the base. This specimen was bred by Mr. Brooks, in 1900, the pupa 

 coming from Long Sutton, Lincolnshire. Mr. Brooks tells me that 

 he has reared large numbers of specimens from the same district, and 

 this intensification of the white scaling and development of bands and 

 streaks, appear to be marked in several of his other specimens, but in 

 none so greatly as in that described above. He has a somewhat 

 similar, but smaller and less marked, specimen which he also reared in 

 October 1900. Several of his earlier aberrations, with white scaling, 

 and more or less banded and streaked, were exhibited by him at the 

 South London Entomological Society, on November 8th, 1900. I 

 have spoken of the particular aberration described above as being prob- 

 ably almost unique. There is an indistinct recollection which haunts 

 my mind, that some years since I saw in London two very gray speci- 

 mens. As Mr. Brooks' best have never been south before, 1 am 

 puzzled as to whether I have not dreamed. I hope, however, that 

 these notes of mine may induce the owner of these phantom speci- 

 mens to exhibit them again, if they exist, that those who are interested 

 may compare them with Mr. Brooks' {.see note postm. — Ed.). 



(4) In Mr. Clark's collection I noticed another specimen, a very 

 fine large ? , quite pale and faded looking, yet perfectly scaled and in 

 good condition. 



(5) I have in my cabinet a 2 which has the inner line on both 

 hindwings almost obliterated. I have seen this form nowhere else, 

 but Mr. Clark, Mr. Brooks, and I have each a specimen with the line 

 all but obliterated on one hindwing, and curiously enough in every 

 case it is the left side. 



Freaks. — (1) Mr. Clark has a $ in which the inner band on the 

 left hindwing, ends towards the abdomen, in a large black blotch, 

 extending and enlarged towards the base of the wing, and also extend- 

 ing, but narrowing, across the yellow space, through the outer band 

 and into the fringe. This insect was exhibited by Mr. Clark at the 

 meeting of the City of London Entomological Society, November 17th, 

 1908. ' 



(2) Mr. Brooks has a specimen in which the upperwing on the 

 left side is divided from near the centre of the costa, to within one- 

 third of the base on the inner margin, the basal portion being quite 

 normal, but the outer and larger area yellow. 



[For the purpose of illustrating certain forms of this species in 

 The Natural Histori/ of the Jlritis/i Lcpidojitera, vol. iv., I have repro- 

 duced three of the examples in Mr. Brooks' collection, and a copy 

 of this plate is being published with this article. These I have 

 named respectively : — (1) ab. tiri/ata, in which the pale and dark areas 

 of the forewings take on a distinctly banded form ; (2) ab. raricf/ata, 

 in which the pale markings are so enlarged as to give the specimens a 

 distinctly variegated and unusual appearance. This form is referred 

 to at length by Mr. Burrows above, and is no doubt that exhibited by 

 Mr. Brooks, at the meeting of the South London Entomological 

 Society, November 8th, 1900, as I remember the exhibit well, and 



