Robber Fly from the Canary Islands

Subject: Flying insect
Location: Canarian island
September 17, 2016 4:05 am
I foundation this insect on my Windows in Gran Canaria
Thatcher insect is +/- 4cm long.
It is dangerous?
Signature: Insect

Robber Fly
Robber Fly

This is a Robber Fly, and here is a very similar looking individual posted to Getty Images.  While a large Robber Fly might bite a person if it is carelessly handled, they are not aggressive towards humans, but they are predators that frequently hunt on the wing.  Based on this Alamy image, your individual might be Promachus latitarsatus.  The species is also pictured on Biodiversidad Virtual, and an image on Diptera Info shows a large Robber Fly eating a Dragonfly.

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