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