Unassigned, possibly plesiomorphic genera
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Neoduma Hampson

Type species: ectozona Hampson, Philippines.

This genus is monobasic. The only species is small, white, with dark grey areas on the forewing and a grey tinge towards the margin of the hindwing. The forewing cell extends to beyond four fifths of the length of the wing and is distally squared, with R1 and R2 branching off basad to its distal anterior angle and a branching system of (R3 (R4, R5)) arising from the distal angle. M1 and M2 arise from the cross-vein, and M3 is connate with CuA1 at the posterior angle of the cell, with CuA2 arising from the centre of CuA within the cell. The hindwing has four veins arising independently from the distal part of the cell. The male antennae are filiform but densely ciliate.

The male genitalia have narrow valves that appear individual, apically tapering, curved, acute, with an obtuse angle on the costa just basal to the tapered part. The vinculum is slightly twisted on each side where it meets the tegumen. There is a large juxta like an inverted V. The aedeagus vesica has no cornuti. The eighth sternite of the abdomen bears a mass of black, needle-like scales.

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