Amblymelanoplia nigra is a species of beetle of the family Scarabaeidae. It is found in South Africa (Western Cape). The habitat consists of Knersvlakte Quartz Vygieveld.
Adults reach a length of about 11.1 mm. They are mostly dull black. The clypeus brown setae, while the head has pale-brown and brown setae. The pronotum has brown setae, as well as dark-brown setae on the lateral and anterior margins. The elytra have short brown setae, mixed with a few white scales.
The species name is derived from Latin nigr (meaning black) and refers to the black colour of the beetle.