Macopaeus is a genus of jumping spiders endemic to Madagascar.

It contains only one species, Macopaeus spinosus.

[1] Two other species (M. celebensis Merian, 1911 and M. madagascarensis Peckham & Peckham, 1903) were described in this genus in the early 20th century.

However, these were transferred to the genus Brettus in 1980.

This article related to jumping spiders (Salticidae) is a stub.