Seitz:

144. Genus: Heliura Btlr.
Extremely near to the next genus, distinguished chiefly by the middle radial of the hindwing rising from above the lower cell-angle, and by the absence of the hairing on the abdominal base and sides. The upper median vein of the forewing always rises distinctly below the cell-angle, the lower radial veins from it or also on a short pedicle, the upper radial distinctly from below the upper cell-angle. The cell of the hindwing is long, the upper median vein with the lower radial come from the lower cell-angle always distinctly petioled, the 1st radial and the subcostal vein rise unpetioled from the upper cell-angle. The species partly greatly resemble Eucereon-species, a small part of them, however, looks most remarkably different.





Cat. Lep. Ph. Brit. Mus. Key:

- HW Cu2 well before cell angle
- HW M2 present
- Abdomen with 2nd segment not constricted
- Antenna shaft not fringed with hair
- Abdomen without lateral tufts
- FW with Cu1, Cu2 from cell, M3 from lower angle
- Palpi upturned, 3rd joint erect
- HW with M2 from above cell angle
- HW R and M1 from cell, rarely very shortly stalked 
- HW Cu1 and M3 stalked
- FW R2 stalked with R5,4,3