Amblymelanoplia sulcata is a species of beetle of the family Scarabaeidae. It is found in South Africa (Western Cape). The habitat consists of Eastern Rûens Shale Renosterveld.
Adults reach a length of about 9.8 mm. They are blackish red-brown, with the head and pronotum black. The clypeus has brown setae, while the setae on the head are black. The pronotum has pale-brown setae and black setae on the lateral and anterior margins. The elytra have pale-brown setae.
The species name is derived from Latin sulc (meaning a groove or furrow) and refers to the distinct groove beside the scutellum.