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

Subject: wasp? bee? hornet?
Location: Whitewater, California
June 7, 2016 10:02 am
Hello!
My kids and I normally play bee rescue in our pool. We live just outside Palm Springs, CA so there is not much water just laying about so bees love our pool, sadly a lot of them hit the water and almost drown so we will fish them out and let them dry off before they decide to go on their way.
However, the other day after lunch we found this poor thing in the pool, we didn’t get to it in time since we were in the house.
Although, I am a bit nervous as to what it is because it was so much bigger! It was about 1 1/2 -2 inches long!! Huge compared to our little bees. Can you tell me if this one is safe to save and what it is? I have looked through your site and can’t find anything like it.
Thank you so much for your help!!
Signature: Cristena

Mydas Fly

Mydas Fly

Dear Christena,
None of the above.  This is a Mydas Fly in the family Mydidae, but it does not look like any species we have seen.  We cannot even locate a conclusive match on BugGuide,
but our best guess is that it is in the genus Nemomydas like this unidentified species on BugGuide or this Nemomydas venosus also pictured on BugGuide.  Neither image looks exact, but they are close enough for us to guess your individual is closely related.  According to BugGuide, Mydas Flies are:  “Large flies, often wasp mimics. Have prominent, clubbed antennae and distinctive wing venation” and to the best of our knowledge, they are perfectly harmless.  As an aside, it is not possible to make out the head of the Mydas Fly in your image as it is partially obscured by the wings and body of a smaller fly.

What's That Bug? does not endorse extermination

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.

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