Eucereon casca Dognin, 1894

Dognin, P. 1894. Lépidoptères nouveaux de Loja et environs (Équateur). Annales
de la Société entomologique de Belgique 38: 680. Original description.
Translated from the French original.

Eucereon casca n. sp.

34 millimetres. Upperside of the fore wings blackish brown with two white spots:
a cellular one, small, roughly square, and an extracellular one, larger, oval,
running from the costa to vein 2 (a little before the terminal margin).

Veins partly yellow, three yellow internervular lines between the submedian and
vein 2, finally a subterminal line, likewise yellow. Upperside of the hind wings
whitish with the margins smoky. Fringes grey.

Underside of the fore wings blackish grey with the two white spots as on the
upperside. Underside of the hind wings whiter than the upperside, the margins
likewise blackish.

Palpi and antennae (pectinate) blackish brown; frons of the same tint in the
centre, yellow at the side; thorax blackish brown, shoulder-covers (ptérygodes)
black, bordered with yellow on the inner side; upperside of the abdomen black
with a whitish spot at the boundary with the thorax; anus furnished with a small
tuft of hairs, yellow at the side; underside of the body blackish brown with a
white ventral spot on the first segments; legs likewise blackish brown.

Two ♂ and one ♀; Loja, 1890 and 1893.

This description is made from the better-marked of the two.

Hampson, G. F. 1898. Catalogue of the Lepidoptera Phalaenae in the British
Museum. Volume I. Catalogue of the Syntomidae in the collection of the British
Museum. London: p. 501, no. 1100, pl. XVII f. 1.

1100. Eucereon casca. (Plate XVII. fig. 1.)
Eucereon casca, Dognin, Ann. Soc. Ent. Belge, xxxviii. p. 680 (1894).

♂. Black-brown; vertex of head with two orange spots; patagia streaked with
orange; shoulders with orange spots; metathorax with whitish patch; legs
streaked with yellow and white; abdomen with orange dorsal patch on last two
segments, the ventral surface with white bands on first three segments. Fore
wing with bright orange streaks on the veins and interspaces of inner area,
interrupted in places; two slight streaks in the cell, with whitish bar between
their extremities; an oblique somewhat wedge-shaped white patch beyond the cell
between veins 7 and 3, with orange spot above it on costa. Hind wing
semihyaline, the veins, and margins broadly, blackish.

Hab. Ecuador, Loja, type † in Coll. Dognin; Bolivia, Chaco (Garlepp), 1 ♂. Exp.
40 millim.

Draudt, M. 1915. Eucereon. In: Seitz, A. (ed.), The Macrolepidoptera of the
World, vol. 6, The American Bombyces and Sphinges: p. 177, pl. 25 c. (German
edition: Die Gross-Schmetterlinge der Erde 6.)

E. casca Dogn. (25 c). The large, white, subapical oblique spot of the
brownish-black forewing makes the species easily recognizable; the veins are
striped orange-yellow, of which colour are also 3 small costal spots, the third
at the beginning of the subapical spot; a small spot in the middle of the cell
is whitish. Hindwings diaphanous with blackish margins. Body blackish-brown,
anterior body with orange stripes and spots, the three first ventral segments
with white bands, the two last rings above spotted orange. Ecuador, Bolivia.