The genus Erpornis is a bird species in the family Vireonidae of the order Passeriformes.

"Vireo" is a Latin word referring to a green migratory bird; other possible meanings: green, fresh, verdant, vigorous...
Erpornis : Greek word herpo – to creep about ; ornis- bird.

1/  White-bellied erpornis (Khướu mào bụng trắng, Erpornis zantholeuca) or simply erpornis
Formerly placed in Yuhina and often still misleadingly called "white-bellied yuhina".