Diamella cupreomicans is a species of ground beetle in the Lebiinae subfamily that can be found in China, Indonesia, Myanmar, Laos, Malaysia, and Vietnam.

The species is blackish-green in colour and is 6.9 millimetres (0.27 in) in length.

[1] In China it can be found in such provinces as Guangxi, Hainan, and Yunnan, while in Indonesia it is found on Borneo, Java and Sumatra islands.

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