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Cyclosodes
Hampson
Type species: flavicostata
Hampson, Borneo.
This genus contains one
species endemic to Borneo. The forewings are narrow, rather ovate, a pale brown.
The hindwings have a greater area, particularly in the male, and are dark grey.
They are expanded considerably in the costal area to underlap the forewing and
enable large, oval androconia on each to interact. The forewing cell is
displaced posteriorly, with an expansion of the area supported by the radial
sector veins. The anal area of the hindwing is also expanded, and there is a
lens-shaped androconial pocket dorsally between CuA and the first anal vein. The
apex of the hindwing is weakly bilobed. The venation of the female is more
normal, but the forewing cell is still relatively distant from the costa.
The male genitalia and
abdomen are typical of the generic complex, as are those of the female. In the
latter the ductus is narrow and the bursa roughly spherical, containing an area
of dense spining over its dorsal half that abruptly terminates at a sharp but
irregular boundary more or less centrally.
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