Dielis tolteca, the Toltec scoliid wasp, is a species of hymenopteran in the family Scoliidae.

As with the females, the most similar species is D. dorsata, which has sparser setae on the external valve of the penis and lacks banding on the sternites.

The males further share the paler markings with D. plumipes, a species that is sympatric in Texas and which has the clypeus and pronotum entirely black.

Another ally, D. pilipes, has a fifth band on the abdomen (only shared with D. tejensis[4]) and is structurally distinct from all other members of the genus by the microstructuring on the frons, propodeum, mesonotum, and hind tibiae.

[3] D. tolteca is mainly found in the Southwestern United States and Mexico but also occurs in Haiti.