Cirrhochrista grabczewskyi, Ivoloina park, Madagascar
An extraordinarily well defined moth. Most definitely Cirrhochrista sp. and within that genus, this by far comes closest:
The only doubt/problem is one little detail in the wings. Note the jagged tooth-like line in the middle of the wing on my pic, versus the straight thick line on that reference.
''Cirrhochrista grabczewskyi'' is a moth of the family Crambidae. It is found in subtropical Africa from Senegal to Kenya, and is also known from Zimbabwe and South Africa.
It has a wingspan of 24–30 mm.