Archeohomaloplia xiajuan is a species of beetle of the family Scarabaeidae. It is found in China (Yunnan).
Adults reach a length of about 4.9 mm. They have a black, oblong body. The antennae are black and the dorsal surface is shiny, with sparse and evenly spaced long, erect setae.
The species is named according to its occurrence near Xiajuan.