Epipompilus aztecus is a Neotropical spider wasp belonging to the Pompilid subfamily Ctenocerinae.
The wasp is black and reddish brown in color.
The distribution of Epipompilus aztecus spans from southern Mexico to Mato Grosso do Sul in Brazil, and eastwards to the Atlantic Forest (biome).
The Epipompilus aztecus lives primarily in Tropical deciduous forests.