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Pnoepyga is a genus of passerines endemic to southern and southeastern Asia. Its members are known as cupwings or wren-babblers. 

Pnoepyga, Pnoepygidae: pnoe [Greek] πνοή (pnoē): wind, breath, breeze, soul; pyga: puge meaning "rump".

1/ Scaly-breasted cupwing or scaly-breasted wren-babbler (Khướu đất đuôi cụt, Pnoepyga albiventer) 

2/ Pygmy cupwing (Khướu đất đuôi cụt Pigmi, Pnoepyga pusilla) or pygmy wren-babbler

Pygmy Cupwing, or pygmy wren-babbler
(Khướu đất đuôi cụt Pigmi, Pnoepyga pusilla)

Pnoepyga, Pnoepygidae: pnoe [Greek] πνοή (pnoē): wind, breath, breeze, soul; pyga: puge meaning "rump".
pusillus, pusilla: very little, very small, tiny

The pygmy cupwing or pygmy wren-babbler, is a species of bird in the Pnoepyga wren-babblers family, Pnoepygidae.