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Maceda
Walker
Type
species: mansueta
Walker, Borneo.
Synonym: Calduba
Walker (type species
obtenta
Walker = mansueta
Walker, Sri Lanka).
All species in this widespread but not very diverse Indo-Australian genus have
similar forewing facies and particoloured dark versus pale grey to white
hindwings. The forewing venation is as in the groundplan, but M3 and CuA1 are
stalked in the hindwing. The male has a scaleless groove within the distal part
of the forewing cell on the upperside, seen more clearly from the underside.
The male abdomen lacks tymbal structures, but the basal margins of the eighth
segment sclerites are excavate centrally, that of the tergite deep and circular.
The genitalia are similar to those of other genera in this ‘careine’ suite, and
the gnathus and subscaphium show development as in Arachnognatha. The
aedeagus is narrow, with a scattering of small spines in the vesica.
In
the female the ductus is very short, pouch-like, the bursa elongate, pyriform,
with some fluting and thickening in the narrower, basal part.
The genus extends from the Indian Subregion to Queensland and Samoa, but
is slightly more diverse east of Sulawesi.
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