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ARPIDEA CHORINÆA.
PLATE XXIII.
Finding it impossible to include this insect, owing to its remarkable form, in any of the genera hitherto proposed, we have been under the necessity of assigning it a new name. Many of its characters seem to be quite peculiar both in the perfect and preparatory states. The species which makes the nearest approach to it is Satyrus Philoctetes, but the differences are considerable, as will be seen by comparing the adjoining figure with that insect. The costal line of the upper wings is very much arched, and the hinder margin is strongly falcate. The external edge of the under wings is likewise falcate posteriorly, and the anal angle is a little produced; the line from that point runs somewhat obliquely nearly to the middle of the hinder edge of the wing, where there is a broad obtuse oblique
