The adult form of the Mexican grass-carrying wasp (Isodontia mexicana) feeds on nectar and pollen. It can reach a length of up to 20 millimetres, the forebody is white-haired, the wings can have a bluish sheen.
The insect, which belongs to the Sphecidae family, was originally native to North America and Central America. Meanwhile, it can also be found in some European regions, in France, Italy, Switzerland, the Netherlands and occasionally also in Great Britain (source).
Although the imagines (adults) feed vegetarian, they hunt crickets, grasshoppers and other insects. These serve as food for their larvae.