This sharky little planthopper is a flatid in the genus Cyarda. It’s highly likely that this is Cyarda sordida, because I understand that’s the more common variety, but this is one of those species where science is currently arguing over exactly how many species there are and where they live. To make it worse, it’s told apart from other members of the same genus by exactly how the genitals are shaped. Since I have only photos of the outside…behold, Cyarda sp.

Identified via the kind people at iNaturalist.