Pycnarmon radiata is a moth in the family Crambidae.

There is also a black spot on the costa at one third, from which the first line runs vertical to the inner margin.

There is a small black dot in the cell and a large black spot at the end, a black streak runs from below the small dot to the inner margin before the anal angle, another from below the discal spot to the hind margin above the anal angle.

There is a row of black marginal spots increasing in size as they approach the anal angle.

There is a thick black outer line from the costa beyond two thirds.