Lymantria mathura, the rosy gypsy moth, is a species of moth of the family Erebidae found in the Russian Far East, Nepal, Japan (Hokkaido, Honshu, Kyushu), the Korean Peninsula, northern India and China (at least Hebei, Heilongjiang, Jilin also in the west).

Larvae disperse through ballooning, covering greater distances compared to the Lymantria dispar and exhibiting high rates of settling.

[1] Larvae have also been recorded feeding on Terminalia, Shorea, Quercus, Mangifera, Eugenia and Mitragyna.

It is considered a pest, since it is a major defoliator of deciduous trees.

Their larvae exhibit intraspecific variation to polyphenol metabolism depending on their host plant, allowing them to be polyphagous across multiple broadleaf species.