Under Side. Palpi very small, hairy, and white. Thorax, legs and abdomen white. Wings pale red-brown, having a shade of darker colour running along their external edges, and on the anterior ones are placed two faint-coloured streaks, running from the external edges towards the middle of the wings. Margins of the wings angulated and dentated.
CASTNIA THAIS.
Plate [XVI]. fig. 4.
Order: Lepidoptera. Section: ——? (hesperi-sphinges, Latr.) Family: Castniidæ.
Genus. Castnia, Fabr. Latr. God. Dalm. Papilio (Dan. Festiv.), Drury.
Castnia Thais. Alis anticis supra fusco-viridibus, nitidis, basi fasciisque duabus carneo-griseis; posticis rubris fasciis duabus margineque nigris. (Expans. Alar. 2 unc. 6 lin.)
Syn. Papilio (Dan. Festiv.) Thais, Drury, App. vol. 3.
Castnia Thalaira, Latr. God. Enc. Méth. ix. p. 800. No. 14.
Habitat: Brazil.
Upper Side. Antennæ brown. Thorax, abdomen, and anterior wings red-brown; the latter having two streaks or bars of a lighter colour crossing them from the anterior edges to the posterior and external ones; one crossing the middle of the wing, the other nearer the tips. Posterior wings orange; the lower part black along the external edge, whereon are placed a row of square orange-coloured spots, those next the upper corners reaching to the edge; a black line also crosses these wings, beginning just below the body, and running almost across to the upper corner.