Pseudidonauton siamica

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

The wingspan is 14–15 mm. Adults have a pale brown ground colour. The forewings have a basal dark area, defined by a whitish distal border. Adults have been recorded in early and mid-October.