Lasius Alienus or Lasius Niger

[kytian]

Hello,

There was a nuptial flight today and I was able to catch quite a few queens

From looking through pictures, I'm thinking its from the Lasius genus. Any tips on differentiating the species would be much appreciated.

Is it possible to keep 2 or more queens together for this species?

Thanks!

Location: BC Canada
Date: July 3rd
Size: around 8mm

[kytian]

After looking at a few more of them, I'm starting to think they might by Formica instead

[Casualfriday]

I always have a hard time with Lasius and formica. This one looks like a Fromica Fusca queen.

[Batspiderfish]

Lasius americanus, which until recently was thought to be Lasius alienus.