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

Subject:  Fly?
Geographic location of the bug:  Atlanta, Georgia
Date: 01/03/2020
Time: 02:55 AM EDT
Your letter to the bugman:  Is this a fly of some sort?
How you want your letter signed:  Bruce Carlson

Stilt Legged Fly

Dear Bruce,
This is a gorgeous image of a Stilt Legged Fly in the family Micropezidae.  We believe we have correctly identified it as 
Rainieria antennaepes thanks to this BugGuide image.  Of the family, BugGuide notes “Adults of some species are attracted to rotting fruit or dung; in other species adults are predaceous; larvae saprophagous.”  Your image has documented feeding, though we are not certain what has comprised the meal, though based on the BugGuide food information, either “rotting fruit or dung” appears to be a possibility.

Thanks Dan for the identification.  I should have mentioned in my message that my wife took the photograph, but she’s happy to see it posted on your website!
Bruce Carlson

What's That Bug? does not endorse extermination

Subject:  Dancing Bug Identification
Geographic location of the bug:  South Florida, USA
Date: 02/28/2018
Time: 10:57 AM EDT
Your letter to the bugman:  Hello! There is a bug I seen often that does a little dance. They waive their front legs around in big circles, and do a little squat with theit
back legs. The backside of their abdomen is hooked under and sometimes rattles or shakes while they dance. Sometimes they have a red hue on their thorax. They fly and although it looks like they have a stinger, I’ve never noticed them sting anyone or be aggressive.
How you want your letter signed:  Nina M

Stilt Legged Fly

Dear Nina,
Your subject line “Dancing Bug” really caught our attention, and your description of the behavior of this Stilt Legged Fly from the family Micropezidae, is very descriptive.  According to BugGuide:  “Known for their walking around and lifting their prominently marked front legs imitating ichneumon wasps.”

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Subject: What bugs are these?
Location: Cairns, QLD, Australia
December 3, 2016 7:11 am
Found these in my yard.
Signature: CE

Stilt Legged Fly

Stilt Legged Fly

Dear CE,
This is a Stilt Legged Fly in the family Micropezidae, and we are quite confident we have identified it as the Black Stilt Legged Fly,
Mimegralla australica, thanks to the Brisbane Insect website where it states:  “Flies in this family have very long legs, although the front pair is usually shorter. Their body is slender with patterned wings. They usually mimic either wasp or ant. This Black Stilt-legged Fly is black in colour with two write strips on each wings. All legs are black except the smaller front pair with write tips.”  This species is also pictured on the Atlas of Living Australia.  We are postdating this submission to go live to our site at the end of the month when we are away from the office for the holidays.

What's That Bug? does not endorse extermination

Subject: Please help!
Location: Savannah Ga
April 17, 2016 3:42 pm
Please help me identify this bug I have seen them by the door. I’m afraid they are wasps!
Signature: Jenny

Stilt Legged Fly

Stilt Legged Fly

Dear Jenny,
Fear Not.  This is a harmless Stilt Legged Fly,
Grallipeza nebulosa, not a Wasp.  The species is pictured on BugGuide, and members of the family Micropezidae, according to BugGuide, are:  “Known for their walking around and lifting their prominently marked front legs imitating ichneumon wasps.”

My fear has subsided.  Glad I found this site. Thank you so much!
Jennifer

What's That Bug? does not endorse extermination

Subject: What is this bug?
Location: Palm Desert, CA 92260
October 15, 2015 10:45 pm
Is this bug harmful to my plants? Is it beneficial ( like ladybugs)? Thank you.
Signature: Erik

Stilt Legged Fly

Stilt Legged Fly

Dear Erik
We are confident that we have correctly identified your Stilt Legged Fly,
Micropeza stigmatica, based on images posted to BugGuide.  There is no food preference listed on the information page for the species, but we suspect this is a predator.  If we go to the family page on BugGuide, it states:  “Adults of some species are attracted to rotting fruit or dung; in other species adults are predaceous; larvae saprophagous” meaning the larvae feed on decaying organic matter.

What's That Bug? does not endorse extermination

Subject: bug found on house
Location: Jacksonville, North Carolina
August 22, 2013 3:07 pm
I found this ant looking bug on my house the other day, and have no clue what type it is. I’ve tried looking on various websites and haven’t found anything. It looked like a large ant with what I’m pretty sure are wings.
Signature: S. Andersen

Stilt Legged Fly

Stilt Legged Fly

Dear S. Anderson,
This appears to be a Stilt Legged Fly in the family Micropezidae.  According to BugGuide:  “Odd little flies, known for their displaying (?) behavior of walking around and lifting their prominently marked front legs. Abdomen attached to thorax by “wasp-waist”. Likely ant or wasp mimics. The posture of the forelegs may imitate ant and/or wasp antennae and provide them with some protection from predators.” 

What's That Bug? does not endorse extermination