I was told this colony I bought from another local ant keeper was Solenopsis molesta. However when I got them home and took a closer look at them with brighter light, the coloration seems wrong. The head and gaster seem to be a dark brown. While their thorax is an orangeish brown color. I'm wondering now if they are something with a similar look, but different colors like Leptothorax muscorum. Any help I can get is very much appreciated.
I apologize in advance, they are very small, and hard to photograph. The queen is about 4-5mm (at most), while the workers are maybe 2mm.