A great similarity prevails among the different species of Callidryas, and they are consequently difficult to determine. They inhabit the intertropical regions of the two continents.
CALLIDRYAS EUBULE.
PLATE VIII. Fig. 1.
Pap. Eubule, Linn. Cramer, Pl. 120, F, C.—Caterpillar, Stoll’s Supp. to Cramer, Pl. 3, fig. 1, A.—Callidryas Eubule, Boisd. Species general, i. 613.
This insect so closely resembles C. Marcellina that it is possible they would still have continued to be confounded, as they were by the earlier entomologists, had not the different appearance of the caterpillar indicated their essential distinction. In the male the surface of the wings is a fine citron-yellow, with a narrow border of a deeper hue; the fringe of all the wings marked at remote intervals with small rust-coloured spots. Beneath the colour is red, or brownish-yellow; the upper wings with a double ferruginous spot at the extremity of the discoidal cell, and a brownish zig-zag ray towards the outer margin; the under wings likewise with two rounded discoidal spots, silvery in the centre, and surrounded by a rust-coloured ring; there are likewise several undulating brown lines running across the surface more or less distinctly defined. The female is bright yellow inclining to orange, the inferior wings much rounded, and having an orange-coloured fringe interrupted with transverse brown stripes. The position and appearance of the discoidal spots similar to what has been described in the male: the under side deep ochre yellow. Body yellow, with greenish hairs on the thorax; antennæ, and terminal joint of the palpi, rose-colour mixed with brown.
PLATE 8.
1. Callidryus Eubule with Cater. & Chrysalis. Brazil.
4. Terias Mexico. Mexico.
Lizars sc.
The caterpillar (Pl. VIII. fig. 2) is green, covered with small black granules, and having a yellow line along each side, surmounted by another of a blue colour. It feeds on the different kinds of Cassia. The chrysalis (Pl. VIII. fig. 3) is likewise green, changing ultimately to brown.
The butterfly is very common in Guiana, Brazil, and many other parts of America.