Parent: Empidonax (Empidonax flycatchers)

└─ Empidonax affinis (Pine flycatcher)

└─── Empidonax affinis affinis

└─── Empidonax affinis bairdi

└─── Empidonax affinis pulverius

└─── Empidonax affinis trepidus

└─── Empidonax affinis vigensis