Toxomerus politus, commonly known as the maize calligrapher, is a species of hoverfly (Diptera: Syrphidae).
[2] For terminology, see Speight key to genera and glossary 8–9 mm (0.31–0.35 in) The frontal triangle is yellow, while the vertical triangle is black, pollinose in front of the ocelli, with black pile.
The front in female is black, rather thickly yellowish-whitish pollinose, with narrowly yellow on the sides below the ocelli.
In the female, the face is brown medially, and the frontal lunule is completely yellow.
The eye has a distinct triangular emargination on posterior margin ( typical for the genus) at or above the level of the antenna.
The scutellum is brown with a yellow margin, black pile, and a white subscutellar fringe.
The pleurae have a metallic, shining appearance, and there are three yellow spots; one on the meso, one on the sterno-pleurae, and one above the front coxae, which is smaller than the other two.