| Tajuria caelurea | |
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| Species: | T. caelurea |
| Binomial name | |
| Tajuria caelurea Nire, 1920 [1] | |
Tajuria caelurea is a species of lycaenid or blue butterfly found in the Indomalayan realm. It is endemic to Formosa.The larva feeds on Taxillus limprichtii .
Lycaenidae is the second-largest family of butterflies, with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of the known butterfly species.
The Indomalayan realm is one of the eight biogeographic realms. It extends across most of South and Southeast Asia and into the southern parts of East Asia.
Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. The extreme opposite of endemism is cosmopolitan distribution. An alternative term for a species that is endemic is precinctive, which applies to species that are restricted to a defined geographical area.