_Ochsenheimer._--Pap. Jason, _Linn._--Pap. Jasius, _Fabr._--Esper. cater, and chrys.--Drury’s Insects, i. Pl. 1. fig. 1.--Pap. Jason. _Cramer_, Pl. 339, A, B.--Nymph. Jasius, _Godart_, _Latreille_. The genus _Charaxes_ was separated from _Nymphalis_ by Ochsenheimer for the reception of this butterfly, which may be regarded as the most beautiful inhabiting Europe. It varies in the expansion of the wings from three to four inches; the surface a rich silky brown, changing slightly with the light. Along the hinder margin of the primary wings there is a broad fulvous band, more or less sinuated on the inner side and narrowly edged with black externally, divided by eight nervures, which are dark brown ; rather beyond the middle of the wing, a transverse band of large fulvous continuous spots extends from the costa to the inner margin, and is sometimes continued for a short way on the secondary wings; the latter likewise with a posterior band, formed of contiguous spots of a fulvous colour, more or less tinged with green, preceded by a series of from five to seven bluish-green spots, commencing at the anal angle; the margin itself black, as well as the projecting angles, two of which are prolonged into tails. Beneath, the anterior portion of all the wings is rust-red, marked with spots and transverse stripes of olive-brown, encircled with white; beyond this there is a white band of a satiny lustre, bordered externally on the upper wings with dusky lunules; the space beyond these lunules is fulvous, traversed by a band of slate-grey, with a series of black spots, inclining to triangular, on the inner side of it. Beyond the white band on the secondary wings there is a row of ferruginous spots, succeeded by an olive-coloured space bearing a row of violet-blue points; the posterior band similar to that on the upper side. Head and thorax rust-brown; abdomen dull brown, with greyish hairs; antennæ black, proboscis shining rust-red. [Illustration: PLATE 16. _Charaxes Jasius._ S. Europe. _Lizars sc_] The female scarcely differs in appearance from the male, except in having the under side of the hinder wings finely sprinkled in the middle with blue points.