Amblymelanoplia stalsi is a species of beetle of the family Scarabaeidae. It is found in South Africa (Western Cape). The habitat consists of South Langeberg Sandstone Fynbos.
Adults reach a length of about . They are mostly dull black. The clypeus has black setae, while the setae on the head are brown. The pronotum has pale-brown and brown setae, a few white scales at the posterior margin and black setae on the anterior and lateral margins. The elytra have pale-brown and brown setae, as well as some white scales at the anterior margin.
The species is dedicated to Mr. Riaan Stals.