Westwoodia[1] is a genus of parasitoid wasps in the subfamily Ctenopelmatinae.
A neotropical genus of butterflies was known as Westwoodia but is now referred to as Xenandra.
The genus is endemic to Australia[2] and has been previously documented in northeastern, southeastern and western Australia.
[3] Like other genera in the subfamily Ctenopelmatinae, Westwoodia are koinobiont endoparasitoids of sawflies.
All known Westwoodia host species are sawflies in the subfamily Perginae.