Aulagromyza cornigera is a species of leaf-mining fly in the family Agromyzidae.

Mines potentially from this species have also been found on Triosteum perfoliatum.

[2] Larvae of this species form white or greenish-white linear mines with black alternating lumps of frass on the upper surface of leaves.

[2] The species is native to Europe, being found as far north as Norway and as far east as the Volga District of Russia.

[3][4] It is also found in the United States and southern Canada.