Amblymelanoplia webbi is a species of beetle of the family Scarabaeidae. It is found in South Africa (Limpopo). The habitat consists of Woodbush Granite Grassland.
Adults reach a length of about . They are dull black. The clypeus and head have black setae. The pronotum has dark-brown setae, a few white scales at the posterior margin and black setae at the lateral and anterior margins. The elytra have black setae and, at the anterior margin, some white scales.
The species is dedicated to the naturalist and photographer Mr Peter Webb, who collected the species.