yuān yang hú dié pài
Mandarin ducks and butterfly (i.e. love birds) literary school around 1900, criticized as populist and romantic by socialist realists
鸳
yuān
mandarin duck
鸯
yang
used in 鴛鴦|鸳鸯[yuan1 yang1]
蝴
hú
used in 蝴蝶[hu2 die2]
蝶
dié
variant of 蝶[die2]
派
pài
(literary) tributary; branch of a river