4 replies to this topic

[Lukas2021]

Hi all, hoping I could get some help on ids for my queens:
#1: https://imgur.com/a/FqQtjR3Ann Arbor, MI black 9mm
#2: https://imgur.com/a/OdtyWmoAnn Arbor, MI Founding chamber under rock in ground, 12mm queen, 2-4mm worker
#3:https://imgur.com/a/ONKgPX6Bay City, MI black 8mm

Thanks in advance, sorry for the poor image quality, and feel free to ask any questions!

[Martialis]

First and third are Tetramorium immigrans. #2 is a Lasius. Probably L. neoniger.

[rbarreto]

I agree with first and third  being T. immigrans, but I would argue the second queen could be any of Lasius americanus, Lasius neoniger, or Lasius pallitarsis. If she flew this year she is probably Lasius americanus.

[Lukas2021]

How could I tell which one it is? If it helps, the workers are fairly light / yellow-brown in color.

[AnthonyP163]

How could I tell which one it is? If it helps, the workers are fairly light / yellow-brown in color.

This probably means that it's L. neoniger, L. pallitarsis, or L. crypticus.

 

L. crypticus is a underdocumented species that has queens which resemble L. neoniger but is a bluish color. It's time we at least start considering them in some of these ID's, especially when the color of the queen is unclear.