Hampson, 1901, Cat. Lepid. Phalaenae Br. Mus. 3: 153; 

1482. Halisidota alsus. Bombye alsus, Cram. Pap. Exot. ii. pl. 113. E (1775); Kirby, Cat. Het. p- 208. Halisidota pectina, Schaus, J. N. Y. Ent. Soc. iv. p. 189 (1896); Druce, Biol. Centr.-Am., Het. ii. p. 373.
Ochreous ; tegule and patagia with black points ; tibiz and tarsi with black bands. Fore wing with outwardly oblique dentate fuscous subbasal line ; two antemedial lines bent inwards and with some fuscous between them towards costa, with another line not bent inwards towards costa and meeting the subbasal line at inner margin; an oblique dentate medial line; a more or less obscure oblique dentate fuscous postmedial band, with small triangular white spot on it at lower angle of cell; two fine dentate postmedial lines and two subterminal lines forming somewhat stellate spots, with some dark points on termen ; a rufous fascia on inner margin. Hind wing semihyaline yellowish white.
Hab. Mexico, Jalapa (/oege), 1 3, Coatepee (Brooks), 1 2, Orizaba; GuatemaLa (Champion), 1 ¢; Cotompta, Bogoti, 2 3; VenrzueLa, 3 9. LHep., 5 48, 2 52 millim.