Thyridia vs. Methona

The 2 genera can be distinguished by the position of the dark cross-bar on the hindwing, which in Methona is further out from the base. Thyridia also have shorter antennae and in newly emerged specimens the hyaline areas have an orange tinge, but this fades after a day or two and becomes similar in hue to the creamy translucency of Methona.

D'Abrera:

The Methona species are devoid  of white marginal spots
on the h.w.r, these being present on the verso surface only. In psidii and its
allies, white maginal spots are present on both surfaces of the hwr.