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

Subject:  Black wings with yellow wody
Geographic location of the bug:  Middle Tennessee
Date: 09/08/2019
Time: 07:21 PM EDT
Your letter to the bugman:  These are all over my porch , theye are bigger than a knat but smaller that a fly
How you want your letter signed:  Peggy plant

Dark Winged Fungus Gnat

Dear Peggy,
We are so sorry because this has been on the back burner for nearly a week because we thought this was a March Fly but we were never able to find a match in that family.  This is a Dark Winged Fungus Gnat in the family Sciaridae based on this BugGuide image.  According to BugGuide:  “Often found in flowerpots. In moist and shadowy areas up to 70% of all Diptera species can be Sciaridae.”

Dark Winged Fungus Gnat

What's That Bug? does not endorse extermination

Subject:  Bugs mimic snake
Geographic location of the bug:  KwaZuluNatal, South Africa
Date: 05/08/2019
Time: 08:57 AM EDT
Your letter to the bugman:  Looked like a snake moving across a porch. Closer inspection showed it was made up of many ‘bugs’ – ?caterpillar-like (not sure – photo sent to me).
How you want your letter signed:  bewilderbeast

Fungus Gnat Larvae

Dear bewilderbeast,
This is an aggregation of Fungus Gnat larvae in the family Sciaridae,
and we have gotten reports in the past from South Africa.  According to GrowVeg:  “The small translucent eggs are laid in batches of 20-50 into the compost surface. These hatch into small cream-coloured maggots that have shiny black heads. The larvae live within the soil and feed on plant roots, lower stems and on leaves that touch the compost surface. When mature, the larvae are around 6mm in length.

Fungus Gnat Larvae

What's That Bug? does not endorse extermination

Subject:  ID please
Geographic location of the bug:  UK
Date: 12/12/2017
Time: 02:55 AM EDT
Hi Bugmen
Thank you so much for providing this service.  My thoughts are a parasitic wasp but your opinion would be greatly appreciated.
How you want your letter signed:  Karen

Gnat, we believe

Dear Karen,
The insect in the images you provided appears to have a single pair of wings, meaning it is in the order Diptera, the Flies.  We suspect this is some species of Gnat.

HI Daniel

Thank you so much and for responding so quickly.  Is it possible to identify it into one of these groups MycetophilidaeAnisopodidae and Sciaridae?  What is the abdominal cercus used for in this type of gnat?
Thank you for your time.
Regards,
Karen Chisholm

Dear Karen,
We do not have the necessary expertise to make that call conclusively.  We suspect that the the organ in question is an ovipositor.

Thank you so much Daniel.
Regards,

Karen Chisholm

What's That Bug? does not endorse extermination

Subject: catepillars
Location: Mpumalanga south africa
February 20, 2017 12:32 am
Hi there
I know the precessionary caterpillars. These ones move like, and obviously mimics a snake. they are much smaller. is it maybe the early stage of precessionary catepillars?
thanks
Signature: wetie

Fungus Gnat Larvae

Dear wetie,
We believe these are Fungus Gnat larvae from the family Sciaridae.  According to iSpot, Fungus Gnats are found in South Africa.  According to BugGuide:  “Sometimes abundant enough to form a crawling mass of several inches across and several feet long, similar to armyworm migrations.”

Fungus Gnat Larvae

What's That Bug? does not endorse extermination

Subject: Bug ID
Location: Bois Blanc Island, MI
February 9, 2017 1:07 pm
Last July, on an inland hike on Bois Blanc Island, MI we discovered swamp milkweed covered in these insects. I have zero idea what they were and had never seen them before. But curiosity has the best of me and I would like to know what they were if possible.
THANK YOU!
Signature: B. Dunn

Fungus Gnats, we believe

Dear B. Dunn,
At first we thought these might be March Flies, but they do not feed and most insects attracted to milkweed blossoms do so because of the rich nectar they provide.  We then entertained they might be Soft Winged Flower Beetles, but that did not look correct, so we contacted Eric Eaton for assistance.

Eric Eaton provides a possible identification.
Daniel:
These remind me of dark-winged fungus gnats, family Sciaridae, but I cannot tell for certain from this one image.
Eric

Ed. Note:  This BugGuide image supports Eric Eaton’s identification.  Though BugGuide does not provide any information on adult food preferences, BugGuide does contain some images of adult Dark Winged Fungus Gnats feeding from blossoms.

Fungus Gnats, we believe

What's That Bug? does not endorse extermination

Subject: Parade of insects in slime?
Location: Hillsboro, Virginia
July 8, 2016 8:47 am
I saw this streak of ‘slime’ on my sidewalk yesterday, about 1/2″ wide and 8″ long which was moving slowly as if flowing forward. It was composed of tiny whitish oblong insects, maybe smaller than a grain of rice which were moving forward in unison in this ‘matrix of ooze’
Photo shows streak of slime on sidewalk. The colors are about the same. I took a short movie of the movement but the file is too large to send.
Hope you can help.
Signature: Sandy

Fungus Gnat Larvae

Fungus Gnat Larvae

Dear Sandy,
These are Fungus Gnat Larvae in the family Sciaridae.  According to BugGuide:  “Sometimes abundant enough to form a crawling mass of several inches across and several feet long, similar to armyworm migrations. Can be pests in greenhouses and in commercially grown mushrooms.”

Oh my GOSH!!!!  Thank you so much for the quick answer.  I will use you again.  How very interesting.  I will search for more about them.
Thank you thank you.
Sandy

What's That Bug? does not endorse extermination