NOTES ON THE VARIATION OF PERONEA CRISTANA, FAB. 67 
data: Two from Dr. Harper, 2 from Mason, and 2 from Standish. 
Commander Walker has kindly examined the series of cristana 
in the Dale Collection at Oxford, and he informs me there is 
included in it a specimen of ab. gumpinana, labelled ‘‘ New 
Forest, Johnson.’”’ This is probably the type-specimen. Nearly 
allied to this form is an example which 1s probably unique ; it 
resembles in all respects gumpinana, with the exception that it is 
without the white vitta ; it came from Dr. Mason. 
Ab. masoniana, Clark. There is the type-specimen, which is 
_ without data, but respecting which Webb says that he gathers 
it came from Dr. Mason. There are also 4 other specimens 
identical with it in that they have its most characteristic feature, 
the ochreous vitta, but they have white buttons in place of the 
ochreous one which obtains in the type-specimen. One of these 
is labelled ‘‘ New Forest. Clark. 1893”; 1 ‘‘Burney’s Dupli- 
eates’’ (what a delightful duplicate!) ; 1 ‘‘ Stevens & Mason 
Collns.” The fourth example came from Dr. Harper’s Collection. 
All these, with the exception of Clark’s specimens, are old, and 
set on white pins. This is one of the rarest forms of cristana ; 
the only other examples I know of are two in Mr. South’s 
Collection, which—and I fancy most, if not all of the others 
—came from the New Forest, and one in the Dale Collection at 
Oxford. 
Ab. tolana, Dsvgs. Of this rare and beautiful form there 
are 6 fine examples, 3 of which were taken at Folkestone by 
Mr. Purdey; 1 is labelled ‘‘ Burney Collection,” 1 ‘‘ Vaughan, 
Stevens & Mason Collns.” ; the other specimen is without data. 
Mr. Purdey informs me in litt. that he has at various times 
taken five of this form, all at Folkestone. 
Ab. curtisana, Dsvgs. = charlottana, Clark. Of this, which 
Webb truly says is the most beautiful of all the cristana forms, 
there are, as previously stated, 3 examples, 1 from Clark, 1 
Mason, and 1 without data. 
Ab. ochreana, Sheldon. There are 5 examples of this form, 
all old, set on white pins, 2 from Harper, 2 from Burney (one 
dating ante 1850), and the fifth without data. 
Ab. flavana, Sheldon. Two examples from the Clark Collection, 
one labelled ‘‘ New Forest.” 
Webb’s series contains the type-specimens of all the forms 
named by Clark in addition to those enumerated above. 
Youlgreave, 
South Croydon ; 
September, 1920. 
