1953, Treubia, 22: 230.
Holloway, 1976: 51.
Diagnosis. The facies is very similar to that of the next species and to glebula
Swinhoe, and confirmation from the male genitalia may be necessary. All are
strongly sexually dimorphic, and females have been assigned tentatively. Males
of both this and the next species can be distinguished from those of glebula by
the slightly more lunulate and irregular fasciation of the forewing: glebula also
has a slightly bronzy tone to the forewing, and is smaller. The male genitalia
of glebula have valves of the rounded type whereas those of brooksi and
the next species are quadilateral. Possible females of brooksi may have a
black abdominal tuft whereas possible females of glebula have it brown,
but only when reared siblings of both sexes are available can this be confirmed.
Those attributed to brooksi have an expanded and sclerotised base to the
ductus, which would correlate with the more robust and broader aedeagus of the
Geographical range. Sumatra, Borneo.
Habitat preference. This is a common species of lowland forest, including
heath forest, and extends at lower frequency up as high as 1930m.
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