Alcis Curtis, 1826

Yu, Xia, Jiang, Xinrui, Wang, Han, Pan, Zhaohui & Han, Hongxiang, 2025, The genus Alcis Curtis, 1826 from Xizang, China, including a new species (Lepidoptera: Geometridae: Ennominae), Zootaxa 5711 (3), pp. 444-450 : 445

Alcis Curtis, 1826

Alcis Curtis, 1826: 113 . Type species: Phalaena repandata Linnaeus, 1758 .

Poecilalcis Warren, 1893: 427 . Type species: Cleora nigridorsaria Guenée, [1858] .

Alcisca Wehrli, 1943: 511 . Type species: Boarmia fredi Wehrli, 1941 .

Dictyodea Wehrli, 1934: 509 . Type species: Arichanna maculata Moore, 1868 .

The following generic characters are summarized based on Holloway (1994) and Müller et al. (2019).

External characters. Antennae bipectinate basally and simple filiform terminally, simple filiform in female. Hind tibia with two pairs of spurs in both male and female, usually dilated with hair-pencil in male. Wings small to moderately large. Male forewing fovea present. Wings usually greyish or brownish. Forewing with postmedial line often protruding twice.

Male genitalia. Uncus and gnathos developed. Socii sometimes present. Valva with costa usually developed into cucullus terminally; valva middle process (=ampulla) single finger-like process, two or three processes, or large sclerite-like bearing different processes. Juxta terminally bifid, forming various processes. Aedeagus often with cornutus.

Female genitalia. Lamella postvaginalis usually developed. Ductus bursae very short, sometimes colliculum present. Corpus bursae very long, often with scobination or corrugation at base.

Distribution. Mainly distributed in Palaearctic and Oriental regions.