Xanthyda chalcosticta (Butler, 1876)

Butler, A. G. (1876). Notes on the Lepidoptera of the family Zygaenidae,
with descriptions of new genera and species. Journal of the Linnean
Society of London, Zoology 12: 342-407; p. 387. Original description as
Cosmosoma chalcosticta.

4. C. chalcosticta, n. sp.

Glaucopis (Poecilosoma) pheres, var., Walker, Lep. Het. i. p. 162. n. 38.

Para (Bates). Type, B.M.

Easily distinguished from the preceding species by the bright brassy-
instead of blue-green spots on the body, and the broader black apical
patch in primaries.

"The preceding species" is Butler's entry 3 on the same page (p. 387):

3. C. pheres = Sphinx pheres, Cramer, Pap. Exot. iv. pl. 382. f. C.
Female. Lemocharis metallescens, Ménétriés, Cat. ii. tab. xiv. fig. 1.
Rio Janeiro (Stevens). B.M.

Hampson, G. F. (1898). Catalogue of the Lepidoptera Phalaenae in the
British Museum, vol. 1, Syntomidae: p. 239. As Cosmosoma metallescens,
with chalcosticta as a synonym.

509. Cosmosoma metallescens.

Laemocharis metallescens, Mén. Cat. Lép. Pét. ii. p. 138, pl. 14. f. 1
(1857); Kirby, Cat. Het. p. 140.
Laemocharis chalcosticta, Butl. Journ. Linn. Soc., Zool. xii. p. 387
(1876).

Black; frons, fore coxae, and extremities of tarsi white; vertex of head
and thorax with patches of metallic blue; abdomen with dorsal and lateral
series of large metallic blue spots; a pair of lateral white spots on
2nd segment; wings hyaline, the veins and margins black. Fore wing with
metallic blue spots at base below costa and above inner margin; the
apical area very broadly black; the terminal band expanding at tornus.
Hind wing with the terminal band expanding at apex and tornus.

Hab. Mexico, Tabasco (H. H. Smith), 1 female, Godman-Salvin Coll.;
Amazons, Para, 1 male, 3 females, Villa Nova (Bates), 1 female type
chalcosticta. Exp. 32 millim.

Draudt, M. (1915). Syntomidae. In: Seitz, A. (ed.), The Macrolepidoptera
of the World, vol. 6, The American Bombyces and Sphinges: p. 77,
pl. 13 k. As Cosmosoma metallescens.

C. metallescens Men. (= pheres var. Wkr., chalcosticta Btlr.) (13 k).
Black, head, thorax and abdomen on the dorsum and on the sides with
metallic bluish-green spots. Forehead, forehips and ends of tarsi white.
Distinguished from the similar species by the intense golden green
reflection of the metallic spots, as well as by a white spot at the
sides of the 2nd abdominal segment, from xanthostictum (13 l)
particularly by the white forehead. From Mexico, Panama, Amazon, Para.