Currently viewing the category: "Robber Flies"
What's That Bug? does not endorse extermination

Subject: Wasp, Bug, or Something Else?
Location: Anacortes, WA
June 2, 2016 7:55 pm
This pretty thing was on a stump next to my kitchen garden this morning. It was about an inch long. Can anyone identify it, please?
Signature: Lorien Shaw

Bee-Like Robber Fly

Bee-Like Robber Fly

Dear Lorien,
This is one of the predatory Bee-Like Robber Flies in the genus
Laphria, and we believe it resembles Laphria columbica which is pictured on BugGuide, but we would not rule out another species like Laphria astur which is also pictured on BugGuide, or possibly another member of the genus.  Members of the genus found in the western portions of North America are pictured on swb.usachoice.net

After quite a bit of internet research, I had strong suspicion it was likely one of the predator critters, and I’m delighted to have a more specific direction for my queries.  Thanks so much for the assistance!
Els

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Subject: Flying Insect
Location: South Texas
May 8, 2016 10:56 am
I live in a rural area & saw the insect in the attached photo for the first time yesterday evening. Am hoping you can help to identify it.
Signature: Cindy

Male Robber Fly

Male Robber Fly

Dear Cindy,
We believe the tufts at the tip of the abdomen of the individual in your image indicate it is a male in the genus
Efferia, possibly Efferia albibarbis based on this BugGuide image and this BugGuide image.  Robber Flies are important predators that often take prey on the wing.

What's That Bug? does not endorse extermination

Subject: Robber Fly, perhaps, with Prey, maybe?
Location: Coryell County, TX
April 6, 2016 12:05 am
Hello! This insect flew out of a rose bush and landed on the fence, holding prey, maybe? I found this on Bug Guide, but don’t know if it is the same. http://bugguide.net/node/view/5188
Clear skies, 80 degrees this afternoon.
Thank you and best wishes!
Signature: Ellen

Robber Fly eats Fly

Robber Fly eats Fly

Dear Ellen,
We always look forward to your submissions.  We agree with your assessment that this is a Robber Fly in the genus Efferia.  The tuft on the tip of the abdomen indicates this is a male Robber Fly.  The prey is also a fly in the order Diptera, but we are not sure of its classification.

Robber Fly eats Fly

Robber Fly eats Fly

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Subject: Huge Robberfly
Location: 36°42’57.27″N 29°14’9.57″E
March 13, 2016 9:05 am
Seen in Turkey last summer. Quite high up (maybe 900m) in a pine forest about 20km inland in SW Turkey near Fethiye. The largest robberfly I have ever seen with a body which must be 40mm long at least. Beautiful looking beastie. You can clearly see the left haltere under the wing in this photo. Despite a lot of googling I am no closer to getting a scientific name for it.
Signature: Sean Stevenson

Robber Fly

Robber Fly

Dear Sean,
Your request arrived while we were out of the office, traveling with Journalism students to NYC.  Your Robber Fly looks very much like this image taken in Italy that is posted on the Diptera Info forum that is identified as being in one of the genera “
Tolmerus/Machimus sp. It is a female of a group of very hard to id species.”

Yes, that looks about right-thanks very much!

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Subject: Black fly/cicada thing?
Location: Newcastle, NSW, Australia
December 5, 2015 12:28 am
Dear Mr. Bugman, I live in Newcastle NSW Australia where summer is just kicking off and I recently stumbled upon this demonic looking critter. It was first hanging off a leaf in my garden where I noticed it had a dark blue shine on its back. It’s eyes were a little apart and it had lots of tiny hairs around it’s snout? There was also a jagged edged plate looking thing beneath its belly. After hours of browsing I’m still not totally convinced it’s a female horsefly despite it being the most similar description I could find. If you could confirm what this creature actually is for me it would be much appreciated, it looks like such a fascinating creature. Thanks
Signature: Dom

Giant Blue Robber Fly

Giant Blue Robber Fly

Hi Dom,
This is a very exciting submission for us.  Though Cicadas are frequently mistaken for flies, and though Australia does have a great diversity of Cicadas with creative common names, this is a True Fly, though not a Horse Fly.  We are relatively certain it is a Giant Blue Robber Fly,
Blepharotes spendidissimus, and though we are not 100% certain of the species, we are confident that the genus is correct.  We do not believe this is the closely related and even larger Giant Yellow Robber Fly.  The Brisbane Insect site has nice images of the Giant Blue Robber Fly and there are not many other images found online.  The individual pictured on Oz Animals appears to be a male, and we are relatively certain your individual is a female.  We believe this other individual from New South Wales that is in our archives is most probably Blepharotes spendidissimus as well.

Giant Blue Robber Fly

Giant Blue Robber Fly

Giant Blue Robber Fly

Giant Blue Robber Fly

What's That Bug? does not endorse extermination

Subject: What’s this bug?
Location: Grey Forest, Texas
November 8, 2015 11:28 am
We live near San Antonio, Texas and have seen this fellow a couple of times. He behaves somewhat like a robber fly, but I could not find a robber fly that looks like him. He is very hairy and quite large, as you can see in comparison to the red wasp. Red wasps are about an inch and a half long. He is quite noisy and slow in flight.
Signature: Dylan Tobe

Belzebul Bee-Eater eats Red Wasp

Belzebul Bee-Eater eats Red Wasp

Dear Dylan,
This impressive Robber Fly is a Belzebul Bee-Eater,
Mallophora leschenaulti, a magnificent predator that is capable of catching on wing and eating large stinging insects.  We are very proud of some images in our archives of the courtship activity of Belzebul Bee Eaters.  We are also noting that your images indicate they were taken in August, and not in November.

Dear Daniel:  Thank you for responding so quickly.  Yes, correct, we took the picture this summer, but just found your site today.  Dylan

Now that you found us, you should visit more often.

What's That Bug? does not endorse extermination