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Inland we find corydon abundant in certain localities. At Clandon they 
swarm, but a variety or aberration is rarely met with. I have never 
seen or taken any aberrations here, but, I believe, one of our members 
(Mr. Grosvenor) took a male of a dull greyish colour; the ground 
is very open and exposed. At Reigate corydon is losing ground and is 
not nearly so abundant as a few years ago, and a variety or aberration 
is the exception. Nearer London, at Caterham and Croydon, it has 
almost disappeared; no doubt the nearest localities get so worked that 
the species has not a chance to hold its own. At Shoreham, in Kent, 
P. corydon is much more abundant, both males and females being well 
up to size; the females vary occasionally and are slightly more 
sprinkled with blue than those from any other locality near London, 
but aberrations are again conspicuous by their absence. In one inland 
locality, which is very little known, I believe, however, you can get all 
forms in one year, at least I have read so. This is Alton, in Hants. 
Mr. L. B. Prout bas a couple of blue females from here, one of which is 
very fine in colouration, approaching very near Adonis. 1 have not yet 
discovered what sort of a place Alton is, but should think it was a very 
sheltered spot; it would be interesting to know whether it is hilly and 
sheltered or open and exposed country. 
The varieties and aberations found in England are as follows:— 
Males. 
Uppersides. —Corydon (type).—Bright silvery-blue, with a distinct 
greenish tint. 
Ab. Marginata .—With distinct broad black border to forewings, 
with only faint dots on hind wings. This is a very fine form, and 
looks lovely on the wing, and is usually larger than the type. 
Var. Hispana .—Pale silvery-blue, with very pale outer margins to 
forewings, containing a row of conspicuous marginal spots edged with 
white-ish. This is a most dull and quaint var., but none the less 
interesting ; it is called pale silvery-blue, but really this term is too 
good, it is more of a dull, dirty, white-washed blue. The marginal 
bands are almost absent (in some specimens entirely absent) and are 
replaced by a row of white-ish dots, the look of these dots giving another 
appearance altogether. 
Ab. Punctata. —Bright silvery-blue with white-ish spotted margins; 
this is a very pretty form and is much more scarce. I have only 
taken a few specimens. 
Ab. Caei'uleo-marginata. —Silvery-blue, with broad, black, unspotted, 
marginal bands. This also is not a common aberration, and is absent 
some seasons. 
Ab. Suffusa .—Is of a dark suffused hue. This is also a much coveted 
aberration and is scarce. It is hard to draw a line sometimes between 
this and ab. marginata, the only difference being that marginata nearly 
always shows a distinctly defined inside edge to the black band, and runs 
equally along the edge. This edge is sometimes partially suffused into 
the blue, but not enough to come under ab. suffusa. In true suffusa 
the bands are well suffused into the blue, sometimes half-way across 
the wings, and have no distinct margins. 
Ab. Minor .—Small dwarf specimens. These occur in both sexes. 
I have taken them no larger than Cupido minima, but the usual size is 
about equal to an ordinary AEgon. 
