
Cyana amatura, Ivoloina park, Madagascar
Reference:
http://www.afromoths.net/genus/show/740250
Cyana amatura seems the most likely match based on locality and specifically the dotted wing edge.

''Cyana amatura'' is a moth of the family Erebidae first described by Francis Walker in 1863. It is found on Madagascar. This species has a wingspan of 24 millimetres.
Similar species: Moths And Butterflies
By Ferdy Christant
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Uploaded Mar 1, 2020. Captured Jul 23, 2019 21:25 in Unnamed Road, Madagascar.