Xylota bicolor

Xylota bicolor , (Loew, 1864), the  Eastern Orange-tailed Leafwalker , is a rare species of syrphid fly observed across the eastern half of 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 13.8-14.7 mm in length, black with an orange abdomen  The larvae of this genus live under bark in sap runs.

Distribution
Canada, United States.