Teldenia alba is a moth in the family Drepanidae. It was described by Frederic Moore in 1882. It is found in Sri Lanka.
The length of the forewings is 9-11.5 mm for males and 13-13.5 mm for females.Wilkinson, Christopher (1967). "A taxonomic revision of the genus Teldenia Moore (Lepidoptera: Drepanidae, Drepaninae)". The Transactions of the Zoological Society of London. 119 (11). Adults are greyish white, both wings with a transverse discal zigzag band, composed of purplish lunules with black-speckled inner borders. Beyond the lunular band is a very indistinct pale purplish-brown lunular line and a marginal row of black dots. In females, the lunular band has a confluent purplish-brown line and the outer line and marginal black dots are more distinct.The Lepidoptera of Ceylon. 2 (2): 120.
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