Amblymelanoplia lajoyei is a species of beetle of the family Scarabaeidae. It is found in South Africa (Western Cape).
Adults reach a length of about 9.5 mm. They are dull black, with some dark red-brown areas. The clypeus has brown setae, while these are black on the head. The pronotum has pale-brown setae and red-brown setae on the lateral and anterior margins. The elytra have brown setae.
The species is dedicated to the French entomologist Lambert Abel Lajoye.