Type species: rosalia Stoll.
This genus is diagnosed above. It extends throughout the Indo-Australian
tropics and consists of a diversity of species in tones of purple, red, orange,
yellow and brown.
The Sumatran fauna has been described by Sommerer (1995), and the
treatment of the Bornean fauna below has benefitted from much collaboration and
exchange of information with him.
The moths come to light at night but are frequently disturbed by day
from the understorey vegetation of the forests where they live.
The larval host-plants recorded are not numerous, but indicate a
specialisation on the family Euphorbiaceae.
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