Mapsidius chenopodii is a moth of the family Scythrididae. It was first described by Otto Herman Swezey in 1947.[1] It is endemic to the island of Hawaii.
The larvae feed on Chenopodium oahuense.
. Elwood Zimmerman . 1978 . Insects of Hawaii . 9 Microlepidoptera . The University Press of Hawaii, Honolulu. 10125/7338 .