Pterocyclophora ridleyi Hampson
Pterocyclophora ridleyi Hampson, 1913, Cat. Lepid.Phalaenae Br. Mus., 12: 466.
Pterocyclophora ridleyi Hampson; Holloway, 1976: 30.
Diagnosis
See the generic description; the facies and the strikingly tailed hindwing margin render the species unmistakable. There is some sexual dimorphism, females having paler, less grey forewings with a darker marginal area.
Geographical range
Sundaland, Philippines.
Habitat preference
The species is uncommon, with records mostly from lowland forest in Brunei (Labi, Ulu Temburong, Ulu Belait), the exceptions being one from 1618m on Bukit Retak and one from 1930m on G. Kinabalu. Chey (1994) recorded several specimens in secondary forest in the lowlands of Sabah.
Genitalia:
