Seen when moved a large plant in a pot. There are two different coloured ants here, a sort of amber and a dark grey/black. Otherwise they look like the same species? Also can see what I'm guessing are larvae?
No interactions present.
There might be something interesting going on here. Some of the yellow ants (mixtus, umbratus, sabularum) found new colonies by temporary social parasitism in the nests of other Lasius spp., including the black L. niger and L. platythorax. These result in mixed colonies before the parasite becomes fully established.
Perhaps you have one of these, but until a specimen is examined by a specialist we will not know for sure. I have seen flavus and niger in very close proximity (sharing a mound, one species on each side), but these look as if they are part of the same colony.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Thanks, that's really interesting. They certainly didn't look as if they were in conflict with each other. I haven't looked at the colony since, but I'll check it out tomorrow to see if anything's changed.
If you would be happy to take a few workers of each colour and send them to me, you can contact me on firstname.lastname@example.org for details.
I checked the colony over the weekend but it seems that the ants have moved out.I guess I must have disturbed them when I originally moved the plant pot :-(
Lat/Lng: 51.5, -1.8
OS grid ref: SU1987