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

Subject: Water Scorpion?
Location: Germantown, Ohio
October 19, 2016 3:49 pm
I found this dude in the creek today while fossil hunting. I picked up a piece of granite from the water and there he was. I believe he’s some some of sediment deposit feeder as I saw him eating dirt off the rock. I took a few pictures and a video and set him back in the water. Let me know what you think!
Signature: Carly W

Stonefly Naiad

Stonefly Naiad

Dear Carly,
This looks like the aquatic larva of a Stonefly, known as a naiad.  Compare your individual to this individual posted to BugGuide.

What's That Bug? does not endorse extermination

Subject: Entomology
Location: philippines
July 27, 2016 12:06 am
hi just want to clarify if this is a stonefly (Order: Plecoptera)? how long will it take for the eggs to hatch? Thanks;)
Signature: karyl

Stonefly

Stonefly

Dear Karyl,
Sorry for the long delay.  This identification has been on our back burner for nearly two weeks.  We agree that this is a Stonefly in the order Plecoptera.  Though it is a North American species, this individual from BugGuide looks very similar to your Stonefly.

What's That Bug? does not endorse extermination

Subject: huge winged insect
Location: Keg River, Alberta
July 4, 2016 10:05 pm
Hi, Just saw this on one of our leafcutter bee huts today. We’re in Keg River, Alberta and have never seen anything like it. Should we be running for the hills? He was about 3 inches long not counting his antennae. Didn’t get a good look at his flying skills – when we disturbed him he just sort of fluttered down in behind some stuff so he didn’t really take off. Big wings though! Any idea what he is? Thanks.
Signature: Shelley

Salmonfly

Salmonfly

Dear Shelley,
This is a Giant Stonefly or Salmonfly in the genus
Pteronarcys.  It is harmless and there is no need to head for the hills.

Thank you!  That was fast.  Good to know we can rest easy.  Love your site.

What's That Bug? does not endorse extermination

Subject: Help me identify
Location: 54° 55′ 59.99″ N, 2° 58′ 59.99″ W
May 29, 2016 5:50 am
Hi. When I was walking i found this what i believe to be a type of stonefly but couldn’t identify it. Could you please tell me what it is? The insect was with what i guess was it’s mate foraging for food. They were beside an estuary where they occasionally were flying off then returning. The insects averagely were about 7 cm within length. The Picture Should have sent with this e-mail, The Geographical location is estimated but i hope the location should help Thanks.
Signature: Yours Scincirley

Stonefly

Stonefly

We agree that this is a Stonefly in the order Plecoptera.  We have determined that your global coordinates are in the UK.  This appears to be a flightless species as the wings do not look long enough to allow flying.  Alas, we have been unable to locate any matching Stoneflies online.

What's That Bug? does not endorse extermination

Subject: Strange bug
Location: Maine USA
May 28, 2016 7:00 am
My friend took pictures of these bugs and we cannot figure out what they are.
Signature: Emil Falkenberry

Stonefly Exuvia

Stonefly Exuvia

Dear Emil,
These are the Exuviae or cast off exoskeletons of aquatic nymphs of Stoneflies, known as a naiads, so we are guessing these images were taken close to a stream or river.  Of the Stonefly family, BugGuide notes:  ”
nymphs occur primarily under stones in cool unpolluted streams; some species occur along rocky shores of cold lakes, in cracks of submerged logs, and debris that accumulates around stones, branches, and water diversion grills.  spring and summer adults may be found resting on stones and logs in the water, or on leaves and trunks of trees and shrubs near water; winter stoneflies are often attracted to concrete bridges over streams, and some species are commonly found on snow or resting on fence posts during the warmer days of late winter.”  Though we cannot be certain of the species, your images resemble the Exuviae of the Beautiful Stone, 
Paragnetina immarginata, which is pictured on BugGuide.  Since one of your images appears to be up-side-down, we are guessing they may have been taken on a bridge overhang.

Stonefly Exuviae

Stonefly Exuviae

Thank you so much and yes they were under a bridge by water.  🙂  Have a great weekend.

What's That Bug? does not endorse extermination

Subject: What is this bug?!
Location: Edmonton, Alberta, Canada
May 10, 2016 7:51 pm
Hi Bugman,
I live in Edmonton, Alberta, Canada and I found a very interesting bug today and I need help identifying it!
Any help you can give me would be wonderful! Thank you!
Signature: Taylor

Salmonfly

Salmonfly

Dear Taylor,
This is a Giant Stonefly or Salmonfly in the genus
Pteronarcys, an insect generally found close to water as the nymphs are aquatic.

What's That Bug? does not endorse extermination