butterfly
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...
in the family
Pieridae
The Pieridae are a large family of butterflies with about 76 genera containing about 1,100 species, mostly from tropical Africa and tropical Asia with some varieties in the more northern regions of North America and Eurasia.DeVries P. J. in Levi ...
. It is endemic to
Sulawesi
Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...
''Eurema irena'' was treated as a subspecies of ''
Eurema simulatrix
''Eurema simulatrix'', the changeable grass yellow, is a butterfly in the family Pieridae. It is found from Burma to Sundaland, Cambodia and the Philippines. The habitat consists of secondary or disturbed habitats including forest clearings, road ...
'', but formally raised to full species status by Yata in 1994.
References
irena
The International Renewable Energy Agency (IRENA) is an intergovernmental organization mandated to facilitate cooperation, advance knowledge, and promote the adoption and sustainable use of renewable energy. It is the first international organis ...