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larvae? - Tabanus atratus

larvae? - Tabanus atratus
Kingston, Frontenac, Ontario, Canada
June 16, 2018
Size: about 1 inch
I found this in a pond; it moves by thrashing its body. I thought it might have fallen into the water, but when I offered it a rock and a piece of vegetation in the specimen container, it remained in the water. The best guess from members of our BioBlitz is a beetle larvae. Other thoughts?

Moved from larval images.

Moved from ID Request.

Tabanid Larva
It could be something close to this one below. They have aquatic larvae. Hold on for an expert.
Tabanus atratus: I'm not sure how to separate the larve in this family. Please try to rear it.

Thank you for the identificat
Thank you for the identification. Sorry, we returned it to its pond.

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