Large Robber Fly from Montana

Subject:  What’s this bug?
Geographic location of the bug:  Polson, Montana
Date: 07/24/2021
Time: 09:22 PM EDT
Your letter to the bugman:  Hello-
We spotted this bug on the deck railing today. Can you enlighten us as to what it is? We are near Flathead Lake & some stagnant ponds. We’ve never seen anything like it. Thanks!
How you want your letter signed:  Suzanne M

Robber Fly: Stenopogon inquinatus

Dear Suzanne,
We believe we have identified your large, predatory Robber Fly as
 Stenopogon inquinatus which is pictured on BugGuide.

Robber Fly: Stenopogon inquinatus

Thank you so much! I read up on the Stenopogon & found that it can be a predator of hummingbirds. This one was hanging out on the railing, right by the hummingbird feeder. Next time we see it, we’ll definitely shoo it away.
I really appreciate your fast response! Cheers!

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