I have been trying to figure out the key ID features for the pavana group Nacadubas, but with not many images available online of live specimens, some of them have been rather challenging, especially N.pendleburyi and N.solta. Would it be possible for you to do an overview of the key IDs? Thank you.
These are some features I have noted/read, splitting the group into 2, with and without metallic scales in the tornal spot.
With metallic scales:
1. N. pactolus
- FW post-discal band typically straight
- Submarginal spots quite rectangular
- HW submarginal spot 6 large, spots 4 & 5 flattened.
2. N. hermus
- FW post-discal band typically straight
- FW submarginal spots chevron shaped
- HW post-discal band in spaces 4 & 5 very close to HW submarginal band
3. N. pavana
- FW post-discal band typically straight, sometimes with dislocations
- Prominent white 'bar/band' running through submarginal spots
- Marginal spots bar-like
4. N. russelli
- Marginal spots oval/lozenge-shaped
- Outer margins of submarginal spots pointed
5. N. angusta (should be distinct enough)
- Broad and diffused whitish striae
- Strongly contrasting black submarginal and marginal spots
- HW submarginal spot 6 large and rounded
Without metallic scales:
1. N. sanaya
- FW post-discal band typically dislocated at vein 6
- HW post-discal band well separated from HW submarginal band
2. N. subperusia
- FW post-discal band gently curved but not markedly dislocated towards costa
- HW post-discal band in spaces 4 & 5 very close to submarginal band (almost touching)
- HW submarginal spots strongly concave and dark, contrasting greatly from ground colour
3. N. pendleburyi
- FW post-discal band gently curves towards costa
- HW post-discal band well separated from HW submarginal band
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