Hyposmocoma praefracta is a species of moth of the family Cosmopterigidae. It was first described by Edward Meyrick in 1935. It is endemic to the Hawaiian island of Kauai. Its type locality is Kumuwela.
. Elwood Zimmerman . 1978 . Insects of Hawaii . 9 Microlepidoptera . The University Press of Hawaii, Honolulu. 10125/7338 .