idge; Hull;
Scarborough.

* * * * *

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REPUTED BRITISH SPECIES.

On Plate XVI. are grouped together figures of six species of butterflies
which are not admitted into our regular British lists, on account of the
extreme rarity of their capture, or the fact of their not having been
observed at all for several years past. They are all _common_ species in
various parts of the Continent, and some of them will probably occur again
in this country.

* * * * *

PAPILIO PODALIRIUS.--The SCARCE SWALLOW-TAILED Butterfly (fig. 1).--There
is no reasonable doubt that several individuals of this elegant butterfly
were formerly taken in various parts of the country, but no captures have
occurred for many years past. The caterpillar, also, was more than once
found in the New Forest District, Hampshire. Generally a common insect on
the Continent.

[Illustration: XVI.]

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PARNASSIUS APOLLO.--The APOLLO Butterfly (fig. 2).--I have good reason for
believing that a specimen of this splendid Alpine butterfly was captured in
this country very lately, and it is not at all impossible that it may be
some day found on our north country mountains, or those of the Lake
District. It is a most beautiful insect, with its singular semi-transparent
and partially _glazed_ wings; the lower of which bear large eye-spots of
crimson-scarlet.

* * * * *

EREBIA LIGEA.--The ARRAN BROWN Butterfly (fig. 3).--Of this species,
greatly resembling our _E. Blandina_, several specimens were formerly taken
by some entomologists in the Isle of Arran, where, as also in other
mountain districts, it may probably still exist; but its haunts have to be
re-discovered by some enterprising butterfly-hunter.

From _Blandina_, which it almost exactly resembles on the upper surface, it
may be distinguished by the marking of the under side of the hind wing, on
which is an irregular, broken band of _pure white_, and between this and
the margin a row of _three_ distinct black eye-spots.

* * * * *

ARGYNNIS DIA.--WEAVER'S FRITILLARY.--This species is so nearly like
_Euphrosyne_ or _Selene_, on the upper surface, that it readily might be,
and perhaps {172} sometimes is, passed by as one of those common insects.
Underneath it is chiefly recognised by the beautiful blush of _silvery
purple_ that extends in a band across the middle of t