species: discalis Walker, Borneo.
males are known for this genus. It is distinguished by a prominent groove with
associated tufts of hairlike scales at the posterior of the forewing cell. The
venation distal to this is somewhat modified, the posterior branches of the
radial branching system being strongly curved (Fig 1i). The genitalia are
distinguished by rather deep valves with the curved saccular process closely
appressed to the margin of the dorsal component; there are also short falcate
and obtusely triangular processes associated with the base of the valve costa.
The aedeagus and vesica are small, the latter with a single distal cornutus.
1i: Stenaulis discalis Walker
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