I recently found this insect near where I live, where my childs play always! Is it dangerous ??. What insect is this ? Is it poisonous?
I live in Montreal, Quebec, Canada
From Gil Wizen's page, it's a wasp.
Giant ichneumon wasps (genus Megarhyssa) are some of the biggest North American wasps thanks to the females’ long (10cm) ovipositor, which is longer than the wasp’s own body. These wasps might look fierce but they are actually shy and harmless insects. They are parasitoids: their larvae develop as parasites living inside the body of other insects. The female’s ovipositor is therefore not a stinger, but an organ used to inject eggs into the larva’s host. (emphasis mine)
Here is one of his amazing photographs or the wasp laying eggs (into a dead tree).