Gonionota pialea is a moth in the family Depressariidae.
The forewings are ferruginous brown with a slightly paler oblique mark from the costa at two-fifths, followed by some rather darker suffusion.
There is a fine white very oblique strigula on the costa at three-fourths.
The discal stigmata are dark ferruginous fuscous, the first minute and the second rather small.
This article on a moth of the subfamily Hypercalliinae is a stub.