How did I get a damselfly larva in the middle of winter?

[Orlon11]

I just found this in my tank. It's as long as my biggest cherry shrimp!!

What I want to know is how could it possibly have gotten in? It's still deep winter here in Montreal and there's no way damselflies are out now - we had 40 cm of snow yesterday!

Could there have been eggs on the plants I added two months ago? If so, should I worry there's more of these things?

 

[sabrinarichard]

I'm from mtl too, and it's for sure not from this winter lol! Depending where the plant grew it is possible, but it could be from the wild as I read it could take up to half a year for eggs to hach.. It always amazes me how these buggers get into aquariums! Good luck