But, besides the want of a correct delineation, there is yet another circumstance, not, perhaps, at present known, which might have tended also to perpetuate this ambiguity, had it not been in our power to explain it: the intimation of which, it is presumed, will be considered useful by the scientific Entomologist. Previous to the time of Fabricius this elegant species had been unnoticed by any author. Fabricius describes it in his Entomologia Systematica, and refers for the specimen so described to the Cabinet of Mr. Francillon. That the insect, to which he adverts, was included in that celebrated cabinet, we are well assured from our own inspection, but it stood there unaccompanied by any indication of its being a specimen described by Fabricius, or even a Fabrician species. The truth is, that Professor Fabricius, upon this occasion, as in some others, took his description, not from the specimen itself, but from the drawings of Mr. Jones, of Chelsea, which had been copied from the specimen in the cabinet of Mr. Francillon, and it was to the drawing therefore of Mr. Jones, and not to the specimen of Mr. Francillon’s cabinet that Fabricius annexed the name of Pylades. Those drawings must for this reason be now considered as the only positive memorial of the identity of the Fabrician species, Papilio Pylades, that remains extant at this time. The figures, it may be added, which are submitted in the annexed plate, are faithful copies from the original drawings of Mr. Jones, so inscribed in the hand writing of Fabricius, a circumstance that must remove every shade of doubt as to the individual object to which Fabricius had assigned that appellation.
Papilio Pylades is a species of the Butterfly tribe, of moderate size, in comparison with the generality of those which appertain to the same family, the Equites Achivi of Fabricius. The upper surface exhibits an appearance of much simplicity and elegance: the disk is white, and the broad black limb, or border, by which it is surrounded, is marked with a number of spots and semilunar marks of white disposed with much regularity. The disk of the lower surface is also white, but surrounded with a pale brown, or fulvous limb, and marked with white spots in the same manner as the broad black border on the upper surface. A few of the white spots on this fulvous border are surrounded by black lines and spaces. There is also a red band marked with black and blueish spots, that extends along the main or anterior rib of the upper wings, from the base, as far as the middle of the wing, and a spot of red at the base of the posterior pair.
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London. Pubd. as the Act directs by E. Donovan & Mess.rs Simpkin & Marshall Aug.st 1, 1822.
ORNITHOLOGY.
PLATE XIV.
AMPELIS CAYANA
PURPLE-THROATED CHATTERER.
Passeres.
GENERIC CHARACTER.
Bill straight, convex, slightly incurvate: mandibles notched: nostrils covered with bristles: tongue acute, cartilaginous, bifid: middle toe connected at the base to the outer one.