Found dead on the ground, unlike any scarab I've seen before. After hours of searching I believe this is a female Diaphonia dispar. There doesn't seem to be many records of this species.

Large green Katydid, very long antennae
Small black spots evident on the wing covers and brown ovipositor visible too

Attracted to lights at night. Originally believed this to be a moth of some description but upon closer inspection I believe this is Aneipo diva.