Everything smaller than them, and quite a few things larger than them, too. They've been seen muching away at massive dragonflies.
i saw a bird that caught a robber fly.it swallowed it whole and was gone
Kingbirds.
Manx robber fly was created in 1946.
the robber fly blends in by its background. it is called the robber fly because it blends in so good that it can still parts of your food
Dragon fly
how does the robber fly protect its self
a fly eats by its feet
a fly eats by it's feat
A Green Fly
A fly of maggot...
spider
Spider
Frogs eat flies so instead of killing the fly ,which is impossible the frog eats the fly whole
You probably mean a robber fly, family Asilidae, they have a pretty long abdomen. Google it to be sure!