First, I must apologize for the lack of pictures as I have no camera or phone that can take those type of pictures. I think I can describe the ant in question, well enough for identification. I seem to have three different types of Lasius ants in my garden. One, I'm sure, is Lasius niger. It is a very small ant, black or dark brown, and there are many of them around. I also have an ant that I believe is Lasius neoniger, it is larger than niger, but it is shinier and usually has a swollen gaster with sugar water if it is at all possible. They seem to love sugar water more than most other ants. Then I have a third ant that is a mystery to me. They are about the same size as neoniger, (that is larger than niger), with a body shape that resembles niger, but not as bulky or shiny as neoniger. The most obvious difference between the mystery ant and the others is their colour, very pale brown, not yellow like Lasius brevicornis, but very light brown or tan. They are different from all the other ants in my garden in this regard. If I can provide any other details, or you know the identity of this ant, please let me know.
I live in South-western Ontario, Canada - just north of London. We have a rural property and I find these ants nesting in the ground in my garden. They aren't as common as niger or neoniger, but I would really like to know what they are. I have never seen them have a nuptial flight.