Pseudidonauton siamica is a species of moth of the family Limacodidae. It is found in northern Thailand and central Vietnam at altitudes between 119 and 2,300 meters.

The wingspan is 14–15 mm.

References Alexey Solovyev (2009): Notes on South-East Asian Limacodidae (Lepidoptera, Zygaenoidea) with one new genus and eleven new species. Tijdschrift voor Entomologie 152: 167–183

External links The Barcode of Life Data Systems (BOLD)