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

Subject:  Unidentified fly
Geographic location of the bug:  North Carolina
Date: 04/18/2018
Time: 08:19 PM EDT
Your letter to the bugman:  This was on my door in spring. Never seen one before.
How you want your letter signed:  Charlotte

Tachinid Fly

Dear Charlotte,
Our best guess upon first viewing your image is that this might be a Long Legged Fly in the family Dolichopodidae, but we could not conclusively find any matching images on BugGuide.  It also somewhat resembles this Root Maggot Fly in the family Anthomyiidae pictured on BugGuide.  We hope one of our readers will be able to assist with this identification.

Update:  April 21, 2018
Thanks so much to Cesar Crash of Insetologia who provided us a link to the Tachinid Fly
 Cholomyia inaequipes that is pictured on BugGuide.  According to BugGuide:  “Females seen on flowers, perhaps (?) taking nectar” and “Parasitoid of weevils (Conotrachelus). Males, at least, come to lights.”  We believe the submitted image is of a male and since it was found on a door handle, it might have been attracted by the porch light.

What's That Bug? does not endorse extermination

Subject:  Bug
Geographic location of the bug:  Sydney Australia
Date: 04/01/2018
Time: 02:47 AM EDT
Your letter to the bugman:  This bug was on my herb pot plant never seen it before like to identify
How you want your letter signed:  Lady bug

Long Legged Fly

Dear Lady bug,
This is a Long Legged Fly in the family Dolichopodidae, and according to Ecologistics:  “Dolichopodidae generally are small flies with large, prominent eyes and a metallic cast to their appearance, though there is considerable variation among the species. Most have long legs, though some do not. In many species the males have unusually large genitalia which are taxonomically useful in identifying species. Most adults are predatory on other small animals, though some may scavenge or act as kleptoparasites of spiders or other predators.”  Thanks to images on Save Our Waterways Now, we believe your individual is
Austrosciapus connexus, and the site states that though there are other similar looking species:  “Austrosciapus connexus is the commonest of them, and found in backyards, gardens, as well as wilder country.”  The species is also pictured on the Brisbane Insect site.

What's That Bug? does not endorse extermination

Subject:  Bugs in backyard
Geographic location of the bug:  Torrance California
Date: 09/28/2017
Time: 07:31 PM EDT
I put fly traps up in backyard to help with flies around my dogs and I end up catching these bugs instead. I just want to make sure these are not mosquitos since my dogs and myself are outdoors in backyard often.  Thank you for any info you may give.
How you want your letter signed:  currious mom

Long Legged Flies

Dear currious mom,
These Long Legged Flies in the family Dolichopodidae are beneficial predators in the garden, though they are only able to eat the smallest of prey.

What's That Bug? does not endorse extermination

Subject:  What’s on my Woody Plant?
Location:  Mount Washington, Los Angeles, California
August 20, 2017 12:30 pm
Dear Bugman,
I try to keep abreast of what I am finding on my woody plants, and you have provided such excellent information in the past.  Please help me identify this metallic green insect.  It moved about very warily, and getting a photo was not easy.  Thanks for any assistance you are able to provide.
Signature:  Constant Gardener

Long Legged Fly

Dear Constant Gardener,
This is a Long Legged Fly in the family Dolichopodidae, and based on the Natural History of Orange County site, we believe it is
Condylostylus longicornis.  The species is also pictured on BugGuide where it states the range is:  “California; North Carolina to Paraguay; Polyensia. Possibly the most widespread species of the genus.”  Of the family, BugGuide indicates:  “Mouthparts are for piercing (with a short proboscis). Adults and larvae prey on small insects.”  This is a beneficial predator that will help keep your plants free of Aphids and other small insects that are injurious to garden plants.

What's That Bug? does not endorse extermination

Subject: Fly identification
Location: Regina, Sask., Canada
September 6, 2015 5:51 pm
need your hep to i.d this fly. Surprised to find it on my hydrangea. Suspect it may be a hover fly, but have never seen one here in Saskatchewan, Canada.
Signature: Geo McBride

Long Legged Fly

Long Legged Fly

Dear Geo,
We believe, but we are not certain, that this is a Long Legged Fly in the family Dolichopodidae, and it looks very close to a member of the genus
Condylostylus which is well represented on BugGuide.

Long Legged Fly

Long Legged Fly

What's That Bug? does not endorse extermination

Subject: South Africa
Location: Johannesburg, South Africa
September 25, 2012 2:36 pm
Hello Daniel
I have tried to Google and find out what this one is. Bu with little success. A friend told me she thinks it’s a horsefly. I Google orange horsefly but did not find anything like this. Although it does look a lot like some of them. Is it just a different type of horsefly?
Sorry about the little pic.. once again. Can only get so close with my mobile:-)
Signature: rob

Possibly Longlegged Fly

Hi Rob,
We believe this might be a Longlegged Fly in the family Dolichopodidae.  It is not a Horse Fly.  According to Bugguide which covers only North American species, Longlegged Flies:  “vary in appearance and biology. Adults are medium to small slender flies normally with green, blue or copper metallic colored bodies and long legs. Their wings are clear or marked with darker areas towards the wing tips. Wing venation is characteristic.”

What's That Bug? does not endorse extermination