Udea calliastra is a moth of the family Crambidae. It is endemic to the Hawaiian islands of Maui, Kauai, Molokai, Oahu and Hawaii.
The larvae of subspecies U. c. synastra feed on Peperomia latifolia and Peperomia membranacea.
. Elwood Zimmerman . 1958 . Insects of Hawaii . 8 Lepidoptera: Pyraloidea . University of Hawaii Press. 10125/7337 .