Astatochroa fuscimargo is a moth in the Drepanidae family. It was described by Warren in 1896. It is found in Australia, where it has been recorded from Queensland. The wingspan is about 24-30 mm. The forewings are pale yellow with a rufous spot in the cell towards the base, and a rufous cloud before the lower end. There is a fine oblique rufous line from the apex to three-fourths of the inner margin, as well as three wedge-shaped red-brown spots before middle of the hindmargin on veins 2, 3, and 4. The hindwings have a rufous line just beyond the middle, and an antemedian rufous line, visible only towards inner margin.