Calycomyza promissa is a species of fly in the family Agromyzidae.
Canada, United States.
Symphyotrichum ascendens, Symphyotrichum chilense, Symphyotrichum drummondii, Symphyotrichum ericoides, Symphyotrichum lateriflorum, Symphyotrichum oolentangiense, Symphyotrichum pilosum, Symphyotrichum praealtum, Symphyotrichum puniceum.