Agathidium vaderi is a species of round fungus beetle in the family Leiodidae.

It is found in North America.

[1][2] The beetle was named after the fictional character Darth Vader by Cornell University entomologists due to its shiny helmetlike head that resembles that of the Star Wars villain.

[3][4] Agathidium vaderi has been observed in the mountains of western North Carolina, eastern Tennessee, and northern Georgia, including the Great Smoky Mountains.

This Leiodidae-related article is a stub.