Lakshmia sirena is a moth in the family Cossidae. It was described by Yakovlev in 2006. It is found in Vietnam.
The length of the forewings is about 17 mm., 2006, New Cossidae (Lepidoptera) from Asia, Africa and Macronesia, Tinea 19 (3): 188-213. Full Article:
References
Natural History Museum Lepidoptera generic names catalog