Currently viewing the category: "Mydas Flies"
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Subject: BODYOFAGRASSHOPPER
Location: Elizabethton, Tennessee
July 18, 2015 4:33 pm
We have spent 5 hours trying to figure out what the heck this is please help!!!!!!
Signature: Jeniffer Carver

Mydas Fly

Mydas Fly

Dear Jeniffer,
This very effective wasp mimic is actually a harmless Mydas Fly,
Mydas tibialis, and you can verify our identification on BugGuide.

What's That Bug? does not endorse extermination

Subject: Wasp or fly????
Location: Cape Coral, FL
June 1, 2015 7:51 am
Found this on the porch yesterday. It’s at least an inch long and doesn’t appear to have a stinger. We live in SW Florida by the Caloosahatchee River. It was found in the middle of the afternoon. I’ve tried to ID it, but can’t find exactly what it is. But everything leads me to some sort of fly…but man does it look waspy. Please help, want to make sure it’s not dangerous. Thanks.
Signature: Jessica

Mydas Fly

Mydas Fly

Dear Jessica,
This harmless Mydas Fly in the family Mydidae is a magnificent insect, and many of the members of the family mimic wasps as a defense since the flies do not sting, but they benefit from resembling stinging insects.  We believe we have correctly identified your Mydas Fly as
Phyllomydas parvulus based on images posted to BugGuide.  The Beautiful Wildlife Garden site has some great images and information.

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What's That Bug? does not endorse extermination

Subject: Large wasp like insect
Location: Pennsylvania
July 13, 2014 8:56 am
This bee is 1.5 inches. We need it identified for a school project. If you have any information, please let me know!
Signature: -A

Mydas Fly

Mydas Fly

Dear A,
This is a Mydas Fly,
Mydas tibialis, and we verified its identification on BugGuide.

What's That Bug? does not endorse extermination

Subject: Dangerous bug or not?
Location: Rhode Island
July 17, 2013 3:24 pm
Dear Bugman,
I have this insect that looks like a type of wasp that has been hanging around my daughter’s swing set. We built a wooden frame and placed wood chips/mulch in it for the swing set area. The insect wasn’t aggressive and it let me take some close up pictures with my cell phone. I just want to make sure it is safe since it is spending a large amount of time around her swing set. I tried googling images and didn’t realize there are SO many types of wasps. Could you please help?
Signature: Sincerely,

Mydas Fly

Mydas Fly

Though it effectively mimics a stinging wasp, this is actually a harmless Mydas Fly.

What's That Bug? does not endorse extermination

Subject: What is this beautiful guy?
Location: Columbus, OH
July 3, 2013 8:44 pm
Saw him on our burning bush out front. Didn’t want to get too close. Guessing a solitary wasp/fly of some kind? Thanks for any help!
Signature: Thanks, Nick

Mydas Fly

Mydas Fly

Dear Nick,
The Mydas Fly,
Mydas clavatus, that you submitted is a very effective wasp mimic, but we are not entirely certain of the connectivity of this species to other orders in the Complex Web of Life.

What's That Bug? does not endorse extermination

Subject: Digger wasp variant?
Location: Philadelphia, PA suburbs
July 3, 2012 1:20 pm
Hello, I noticed this wasp the other day and was struck by its appearance, as I do not usually see wasps this large except for the occasional cicada killer. I researched it online and as close as I could tell it was a digger wasp, specifically sphex nudus. However, in all the photos I have seen none have the orange antennae like the one in my picture. The wasp was also over an inch long.
Signature: Aaron Trzeciak

Mydas Fly

Hi Aaron,
This is a fly, not a wasp, and it is very easy to mistake a large Mydas Fly for a wasp.  We just posted a photo of another species of Mydas Fly, and your individual is
Mydas tibialis which we identified on BugGuide.

What's That Bug? does not endorse extermination