Native SpeciesWater scorpion

FOUND by sniffly salamander
ID Confirmed
Quality checked by pparent
Peer reviewed by
Field Notes
After visiting a few spots to look for knotweed, we wanted to go to Traffon Lake to see if we could help Pat's students in their research into purple loosestrife and galerucella beetles. People traced up and down the shore line near the boat ramp, but we didn't find it. One person found a really big leech, but we didn't get any photos of it. It was released, and then we were not able to get it to come back despite our efforts to lure it back with toes. We were glad we ended up having nice weather for our fieldwork.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
We had a guest expert. Brian told us all about this cool insect. It looks kind of like a praying mantis, because it's so thin and and it does that funny thing with its front legs.
Photo of my evidence.
We saw a few right in this spot. The VS ID card says that these species are tolerant of pollution. We were pretty sure that this lake has lots of runoff from all the broccoli and potato fields around it. Both leeches and water scorpions are tolerant of pollution.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Common name:
Water scorpion
Count of individuals: 
How big is it?: 
Is it male or female?: 
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 46.887210 °
W -67.843340 °
Observation Site Information
A photo of our study site.
Freshwater - By water's edge
Trip Information
Trafton lake
Trip date: 
Tue, 2013-07-30 11:45
Town or city: 
Type of investigation: 
Species and Habitat Survey
MIDAS Code: 
Habitat Observations
Species diversity: 
Evidence of vectors: 
Boat ramp
Paved road
Walking trail
Water temperature: 
Dissolved oxygen: 


My personal opinion on the water scorpion is that it is one of the coolest bugs I have ever seen. Your are right, we though it looked like a pray mantis too. We did the same outdoor project in Gorham ME and we had found one too. So I think that you guys have some great and useful information. Good job!

We found one too in Gorham, ME

It's awesome that you guys were able to find this and identify it as a water scorpion. It seems like it would be hard to find in the water! Do you know how it is related to other scorpions? It just looks so different!

Great find, sniffly! That is an awesome water scorpion right there. I shared the image with my Envirothon coach, and she loved the breathing tube that is amazingly visible at the back end of that insect! Awesome image, and I think it looks a little quirky too.

Keep up the searching, and I hope your trip up north is going well. I'm glad the weather was nice! Looks like everybody was having fun.

- Kansas (posted from Bozeman, MT)