What is "protrigonia"

Protrigonia is a genus of moths of the Crambidae family. It contains only one species, Protrigonia zizanialis, which is found in Sri Lanka and western India.

The forewings are pinkish white, suffused with brown. The costal line is brown with a brown ringlet. The submarginal band is also brown. The hindwings are white, but grey towards the outer border.