Mating Bee Killers

Subject: bug ID request
Location: coopersburg, Pa
August 18, 2016 3:19 pm
Saw these two bugs on my back deck in Coopersburg, Pa. They are about 1 1?2 inches long. Would love to know what they are.
Thank You,
Signature: banjodan

Mating Giant Robber Flies
Mating Giant Robber Flies

Dear banjodan,
These are mating Giant Robber Flies or Bee Killers in the genus
Promachus, a group that includes the Red Footed Cannibalfly.  We turned to BugGuide to see if we could find a species match for you, and we were surprised to find your image which was submitted to them last week.

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