Ambia chrysogramma is a moth in the family Crambidae. It was described by George Hampson in 1917. It is found on Samoa.[1]
The wingspan is about 12 mm. The forewings are silvery white, the costa tinged with orange yellow towards the base. There is a small tuft of rufous scales below the middle of the costa with the orange-yellow antemedial and medial lines arising below it and rather diverging towards the inner margin. There is also a conical postmedial patch defined by orange yellow from the costa to vein 5, with a brown point on the line defining its outer side at the costa. There is also an orange-yellow subterminal line, excurved to the submedian fold, where it is angled inwards and a fine yellow-brown line beyond it, incurved below vein 2, the terminal area tinged with yellow. The hindwings are silvery white with a small orange-yellow discoidal spot and an orange-yellow postmedial line, excurved to vein 4, then bent inwards to the origin of vein 2 and oblique to the inner margin. There is also an orange-yellow subterminal line, excurved to vein 2, then incurved, with a fine yellow-brown line beyond it. The terminal area is tinged with yellow.[2]