Matrona japonica
Japanese Name: リュウキュウハグロトンボ
Chinese Name: 琉球羽黑蜻蛉、琉球單脈色蟌
English Name: Ryukyu Matrona Damselfly
Origin: Okinawajima, Tokunoshima, Amamioshima
The Ryukyu Matrona Damselfly is a large damselfly species commonly seen in the Yambaru region. It was once considered a subspecies of Matrona basilaris, which is distributed in China and surrounding areas, but has since been recognized as a distinct species. This species is endemic to the Central Ryukyus and is found only on Okinawajima, Tokunoshima, and Amamioshima.
Males have striking metallic green bodies, while females are dark green with blackish wings. A distinctive white pseudopterostigma is visible near the tips of the female’s wings.
參考資料：
Hämäläinen, M., & Yeh, W. C. (2000). Matrona cyanoptera spec. nov. from Taiwan:(Odonata: Calopterygidae). Flumserberg Scientific Publishers.
Yu, X., Xue, J., Hämäläinen, M., Liu, Y., & Bu, W. (2015). A revised classification of the genus Matrona Selys, 1853 using molecular and morphological methods (Odonata: Calopterygidae). Zoological Journal of the Linnean Society, 174(3), 473-486.
