Philodoria nigrella is a moth of the family Gracillariidae. It was first described by Lord Walsingham in 1907. It is endemic to the island of Hawaii.
The larvae probably mine the leaves of their host plant like other members of the Philodoria genus.[1]
. Elwood Zimmerman . 1978 . Insects of Hawaii . 9 Microlepidoptera . The University Press of Hawaii, Honolulu. 10125/7338 .