TRIBE LITHOSIINI
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Stenaulis Hampson

Type species: discalis Walker, Borneo.

Only 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.

Fig 1i: Stenaulis discalis Walker

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