Thyrgis phlegon (Druce, 1885)

Druce, H. (1885). Descriptions of new Lepidoptera Heterocera, chiefly from
South America. Proceedings of the Zoological Society of London 1885:
518-536; p. 520, pl. XXXII fig. 5 (as Eucyane phlegon).

Eucyane phlegon, sp. n. (Plate XXXII. fig. 5.)

Primaries (male) deep black, shot with dark blue, crossed beyond the middle by a
bright carmine band; secondaries deep glossy blue-black. Head, thorax, and
abdomen black, shot with dark blue; underside the same as above. Antennae and
legs black. The sexes are alike.

Expanse male 2, female 2 1/10 inches.

Hab. Ecuador, Sarayacu (Buckley).

This beautiful species is most nearly allied to E. jucunda, Felder, from which
it is at once distinguished by the absence of the red spot on the secondaries,
and the much less bright blue colour of the wings.

Hering, M. (1925). Pericopidae. In: Seitz, A. (ed.), The Macrolepidoptera of
the World, vol. 6, The American Bombyces and Sphinges. Alfred Kernen,
Stuttgart; p. 428, pl. 60 e (phlegon treated as a form within the paragraph on
Thyrgis militta).

Th. militta Stoll (60 e). Male and female not differently coloured. The tinge of
the forewing varies from crimson to orange and yellow. Hindwing either
uni-coloured or with traces of a yellow or red submarginal band. The typical
militta Stoll with a narrower band of the forewing in Brazil, Bolivia,
Venezuela, Colombia. -- phlegon Drc., from Ecuador, the Upper Amazon River and
East Peru, with a band of the forewing of about 4 mm width.