Xylota ejuncida
Xylota ejuncida , (Say, 1824), the  Polished Leafwalker , is a rare species of syrphid fly observed in the eastern North America . Syrphid flies are also known as Hover Flies or Flower Flies because the adults are frequently found hovering around flowers from which they feed on nectar and pollen. Adults are  long. The larvae of this genus live under bark in sap runs. Distribution
Canada, United States. References

Milesiini
Insects described in 1824
Diptera of North America
Hoverflies of North America
Taxa named by Thomas Say