Isopods in my back yard! Identification help please

[lindale450]

So I found a couple dozen of these guys under the maple leaves this spring and when I went to try looking them up apparently isopods have never been reported where I live (central Alberta Canada) Can someone help Identify them? I have been looking at pictures but seems to be a few species that look similar

 

[WhiteMoss]

apparently isopods have never been reported where I live
[/QUOTE]
seems far fetched lol
Looks like a Porcellio. Possibly haasi

 

[lindale450]

apparently isopods have never been reported where I live

seems far fetched lol
Looks like a Porcellio. Possibly haasi
[/QUOTE]
That’s just what the internet told me when I searched Isopods in Alberta

 

[MillipedeFan]

This is what appeared when I searched:

Terrestrial isopods are in Alberta and researchers are on a mission to learn more about them

Research is underway to find out what type of crustaceans we have in Alberta and learn about their habitats

calgarycitizen.com

maybe the isopod is a common woodlouse

 

[CutThroat Kid]

Could also be Hassi, but that would seem odd, I think, because you're in Canada, and according to Google, Hassi are local to drier southern regions. Looks like Oniscus Asellus, otherwise known as 'the common woodlouse,' which has a largely cosmopolitan distribution and are thus found all over the world. I have a massive colony I started from a few I found outside my office in Idaho. The yellow spotted ones are seemingly less common.

 

[Isopods others]

Don't think it's Haasi

 

[Patherophis]

@lindale450 Your isopods are Porcellio spinicornis, species commonly recorded across Alberta

P. haasi looks a bit different and it is a rare huge species endemic to Spain...

 

[Ultum4Spiderz]

@lindale450 Your isopods are Porcellio spinicornis, species commonly recorded across Alberta

P. haasi looks a bit different and it is a rare huge species endemic to Spain...

How Huge do they get lol ?