Brachypalpus oarus (Eastern Catkin Fly)
OrderDiptera (Flies) ▶
FamilySyrphidae (Hover Flies) ▶
GenusBrachypalpus (Catkin Flies) ▶
Speciesoarus (Eastern Catkin Fly) ▶

Female ovipositing on tree trunk.

Rockefeller State Park Preserve, Pleasantville, NY
Apr 18, 2026