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Rh The earliest definite mention of the insect is given by Duponchel in the Bulletin of the Entomological Society of France, as follows:1

The subject seems to have been referred to Dr. Boisduval, for we find in the following year2 that

The next year a very fair illustration of the insect, reproduced in our Plate I, fig. 17, was given, and shortly afterward a written report upon the subject by Dr. Boisduval, in which he furnishes, not only his views upon its affinities, but a brief historical account of the insect, which is given below:3

"II y a bientôt un an que je fus charge par la Société d'examiner le dessin d'un Lépidoptère fossile trouvé dans les plâtrières des environs d'Aix en Provence, et appartenant à M. le Comte de Saporta. Au premier coup d'ceil, ce dessin me parut devoir être rapporté à une espece de Satrydes du genre Cyllo, à côté des Satyrus Rohria, Caumas et Europa, de l'Encyclopédie; mais la découverte d'un