Currently viewing the category: "Robber Flies"

Subject:  Creepy Critter I’ve Never Seen Before!
Geographic location of the bug:  Madison County, Kentucky
Date: 09/09/2021
Time: 11:26 PM EDT
Your letter to the bugman:  My boyfriend and I walked into the kitchen around 10:45 pm and next to the sink was an insect I was creeped out by, but couldn’t stop looking at!
It didn’t move when the boyfriend removed it to the bathroom. I am not sure if it was dead or alive.
Both of us have lived in old houses before and never seen one….we are both in our 40’s.
The house we live in now in on the foothills of the Appalachia Mountains. It was built in the late 1800’s and renovated in the 1940’s and again in the 1960’s.
The original creek rock, used in original foundation, is still under the house.
There are also many caves around the area. As well as other “creepy” types of bugs. Example…. Cave Crickets.
The weather has been a lot milder, wetter, and, cooler than normal.
Are these normal for this area? I can’t find anything about them.
Thanks so much!
How you want your letter signed:  Concerned in Kentucky

Robber Fly

Dear Concerned in Kentucky,
You have no cause for concern.  This is a Robber Fly, a winged predator that did not originate from inside your home.  It likely accidentally entered the home and died.  This is an outdoor predator that has no interest in living indoors.  We cannot tell the species for certain but we believe it might be a Hanging Thief in the grnus
Diogmites which is pictured on Bugguide.

Subject:  What’s this bee, hornet, wasp?
Geographic location of the bug:  Southwestern pa. South of Pittsburgh
Date: 09/06/2021
Time: 10:40 AM EDT
Your letter to the bugman:  At a local playground South of Pittsburgh pa. This thing was on the sign. The larger bug was between 1 and 1.25 inches long not including legs. It appeared to be eating/mating with a “normal” sized bee/wasp. Is this one of those “murder hornets”? I haven’t heard of them in this area yet… Or is this just some large wasp… Thanks for any info.
How you want your letter signed:  The Robe

Red Footed Cannibalfly Eats Wasp

Dear The Robe,
This is neither a Bee, nor a hornet nor a wasp.  It is a Red Footed Cannibalfly, a predatory Robber Fly that feeds on large flying insects, including bee, hornets and wasps.

Subject:  Kind of bug
Geographic location of the bug:  North Carolina
Date: 09/01/2021
Time: 07:23 PM EDT
Your letter to the bugman:  Judy curious what this id
How you want your letter signed:  Thank tip

Giant Robber Fly

This is a Giant Robber Fly in the genus Promachus.  You may read about the group on BugGuide where it states:  “Large robber flies with tiger-stripe pattern on abdomen.”  It might be a Red Footed Cannibalfly, though your individual appears to have fewer stripes on the abdomen.

Subject:  Unknown bee
Geographic location of the bug:  Las Vegas NEvada
Date: 08/19/2021
Time: 08:29 PM EDT
Your letter to the bugman:  Could you please help me identify this bee?
How you want your letter signed:  Sincerely, Dr. Merkler

Bee Killer

Dear Dr. Merkler,
This is not a Bee, but rather a predatory Robber Fly known as a Bee Killer,
Mallophora fautrix.

Bee Killer

Daniel,
I think in the back recesses if my mind, I knew this (once upon a time!).  Thank you so much!!
Dr. M

We are so happy we were able to refresh your memory.

Subject: Type of Robber Fly?
Geographic location of the bug:  Asheville, NC (WNC)
Date: 08/14/2021
Time: 04:58 PM EDT
Your letter to the bugman:  Found this one floating in the kiddie pool. It’s about 2″ long. Can you identify it for me, please and thanks?
How you want your letter signed:  Curious in WNC

Giant Robber Fly

Dear Curious in WNC,
This is a Giant Robber Fly in the genus Promachus, and based on images posted to BugGuide, we believe it might be
Promachus hinei.  There appears to be a wing near the Giant Robber Flies legs that does not belong to the Giant Robber Fly.  We suspect it might have caught prey just before falling into your pool and drowning.

Subject:  Hanging Thief
Geographic location of the bug:  Frederick, MD
Date: 08/12/2021
Time: 10:54 AM EDT
Your letter to the bugman:  Hi bugman! Your website helped me identify what my friend called “demon bug from the pit” as a Hanging Thief or robber fly. I wanted to share some photos I was able to get with this chill little specimen
How you want your letter signed:  Layla

Hanging Thief

Dear Layla,
We cannot possibly answer and post every request we receive, and we respond to many more (though by no means all of them) than we are able to post.  While we have recently posted several new Hanging Thief images, your images are exceptional and a wonderful addition to our archives.

Hanging Thief