Unadilla bidensana is a moth of the family Pyralidae described by Otto Herman Swezey in 1933. It is endemic to the Hawaiian island of Kauai.

Unadilla bidensana
Scientific classification
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U. bidensana
Binomial name
Unadilla bidensana
(Swezey, 1933)
Synonyms
  • Hornoeosoma bidensana Swezey, 1933

The larvae feed on Bidens cosmoides. They bore in the stems of their host plant. The infested stems become swollen and gall-like. Pupation takes place within this swelling.

edit
  • Zimmerman, Elwood C. (1958). Insects of Hawaii. Vol. 8 Lepidoptera: Pyraloidea. University of Hawaii Press. hdl:10125/7337.