''Hyposmocoma bacillella'' is a species of moth of the family Cosmopterigidae. It was first described by Lord Walsingham in 1907. It is endemic to the Hawaiian island of

Kauai Kauai, () anglicized as Kauai ( ), is geologically the second-oldest of the main Hawaiian Islands (after Niʻihau). With an area of 562.3 square miles (1,456.4 km2), it is the fourth-largest of these islands and the 21st largest island ...

. The type localities are Halemanu and Kaholuamano, where it was collected at an elevation of . The larvae feed on ''

Metrosideros ''Metrosideros'' is a genus of approximately 60 trees, shrubs, and vines mostly found in the Pacific region in the family Myrtaceae. Most of the tree forms are small, but some are exceptionally large, the New Zealand species in particular. The n ...

'' species.

External links

* bacillella Endemic moths of Hawaii Moths described in 1907 Taxa named by Thomas de Grey, 6th Baron Walsingham {{Hyposmocoma-stub