https://onlinelibrar....1111/jbi.13380
Basically some of the species found in North America that are also found in Europe will now be recognized under different names as detailed in the paper above.
In summary:
Lasius alienus = Lasius americanus
Lasius flavus = Lasius brevicornis
Lasius umbratus = Lasius aphidicolus
Leptothorax muscorum = Leptothorax canadensis
Here are the pages from the paper:
Click to enlarge.
Thanks to AnthonyP163 for bringing this up in General Chat.
Edited by LC3, July 2 2018 - 11:02 PM.