12 THE ENTOMOLOGIST. 



These two lists give the names of twenty-five forms, which is 

 the total number to be found in this locality at the present date, 

 so far as I am aware. 



For the variation at Folkestone I am entirely indebted to 

 Mr. W. Purdey, who has kindly sent me a list of the forms he 

 has met with in that locality. Mr. Purdey has worked the 

 species during a lifetime, and he is too keen and good a collector 

 not to have become acquainted with at any rate practically all 

 the forms to be found in his locality. 



Mr. Purdey's list consists of twenty-nine aberrations as fol- 

 lows — cristana ty]}e, abs. ochreapimctana, nigrocristana, chantana, 

 alhipiLuctana, striana, suhstriana, fulvostriana, Dsvs., albovittana, 

 desfontainiana, ulotana, consimiliana, fulvocristana, hrunneana, 

 si)adiceana, vittana, snbcnpucina, subimicolorana, cristalana, 

 xa?ithovittaiia, subfulvovittana, subcristalana, sequana, seniistriana, 

 semiustana, bentleyana, charlottana, tolana, and piirdei/ana, Wehh. 



The only information I have as to the rarity or otherwise of 

 these forms at Folkestone is that one example of ab. charlottana 

 and nine of ab. purdeyana have been taken by Mr. Purdey. These 

 two forms and ab. tolana are, of course, exceedingly rare ones, 

 and ab. pnrdeyana is, I believe, not known to occur elsewhere. 



There are two remarkable features in connection with the 

 Folkestone P. cristana ; one of these is the almost total absence 

 of any raelanic tendency, and the other the number of the 

 beautiful light-coloured forms that have been taken. One of these, 

 a.h. siibcapucina, has, I believe, been found quite commonly; it is, 

 of course, quite a rarity elsewhere. I take it that the compara- 

 tive abundance of these light forms at Folkestone bears some 

 relation to their environment of chalk subsoil. 



There are only two forms in the list which show a melanic 

 tendency, and in these the tendency is not by any means 

 pronounced ; they are abs. nigrocristana and ulotana. Of the 

 other forms the most noticeable is ab. subcristalana, which, 

 although rare elsewhere, is, I gather, abundant, or at least 

 common, at Folkestone. 



I have during the last few years taken a very few specimens 

 at Eanmore Common, near Dorking ; unfortunately they are too 

 few to form any reliable data upon, but I give a list of them for 

 what it is worth. 



Probably the species is not uncommon there, but the under- 

 growth is very dense, and one cannot get inside the thickets ; 

 consequently it is not at present possible to form an opinion of 

 its rarity or otherwise. 1 should say that melanism is at the 

 present day rather pronounced amongst the Lepidoptera to be 

 found at Dorking. 



My specimens, only eight in number, consist of — cristana, 

 type, 2 ; abs. nigrana, 3 ; semiustana, 2 ; ulotana, 1 ; and nigro- 

 punctana, 1. The ab. nigrana are of the true form, and have no 

 relation to the melanic Epping Forest ab. subnigrana. 



