The following description of the caterpillar and chrysalis is given by Stoll:--“The head of this beautifully coloured caterpillar is dull yellow, with two short rays and small spots of black. The head is furnished with two long black spines garnished with short stiff hairs. The first five segments of the body are reddish-brown, spotted with black. The belly is white, and the anterior legs black. The rest of the body is reddish-brown; but from the sixth to the eleventh segment, the back is of a beautiful yellow, and bordered on the sides with short black and white rays. The back is armed with four long spines, the last of which, placed on the eleventh segment, is curved backwards, and very similar to the horns with which most of the caterpillars of the Sphinges are provided. The intermediate and posterior legs are yellow. It feeds on the leaves of the Cashew tree (_Anacardium occidentale_), and transforms into a perpendicular chrysalis of a yellow colour, spotted with black, garnished with black spines on the head, thorax, and back. When the butterfly is about to appear, the yellow colour changes into white.[35]” FABIUS HIPPONA. PLATE XIX. Fig. 2. Pap. Hippona, _Fabr._, _Donovan, Insects of India_.--Pap. Fabius, _Drury’s Ins._ iii. Pl. 16, fig. 1, 2; _Cramer_, Pl. 90, fig. C, D; _Stoll’s Supp._ (caterpillar and chrysalis.) This species presents another remarkable form, bearing some analogy to the preceding, but at once distinguished by having only one tail. The hinder margin of the superior wings is dilated, in the middle, into an acute angle; the same margin of the hinder pair is cut in a square form towards the anal angle, and is furnished with an oblique lengthened tail rounded at the extremity. The caterpillar tapers lightly towards the hinder extremity, and has two short obtuse horns on the hinder part of the head. The chrysalis is very short and thick, and without any angular projections. The butterfly expands from three to three and a half inches, and is coloured somewhat in the manner of certain kinds of Heliconia. The upper wings are black above with two broad bands, that next the base tawny-red, the exterior one yellow, sinuated and oblique, extending from the costa to the projecting angle on the hinder margin of the wing; near the apex are likewise two or three yellow spots. Posterior wings black, with a tawny-red stripe along the anterior border, and a few white linear marks running transversely along the hinder margin between the tail and anal angle. Beneath, the surface is rust-brown, with pale clouds and transverse bands on the upper wings, and violet reflections on the under pair. Body ferruginous above and brown beneath.