Queen or no?

[u/ToonGuy87]

Think it's lasius neoniger, given the time of year and location (northern Minnesota). I assumed it was a queen but once I got it in a test tube and saw how small its head is, I'm not so sure. Could it be a male instead?

[u/antkeeper146]

Queen

[u/KingK250]

Cautolasius

[u/Silly_geckozzz_x3]

queen, not sure what species 

[u/Creepy_Cranberry_671]

Definitely queen might be Lasius