Lasius are the king of hard to id, but able to without genetic testing. I mean, once you know how, and if you have a microscope its not that hard though. All you have to do is count, and look at the shape of the teeth on the mandible, and look at what type of hairs there are on the antennal scape. At least for niger group.
Hi there! I went on a 6 month or so hiatus, in part due, and in part cause of the death of my colonies.
However, I went back to the Sierras, and restarted my collection, which is now as follows:
Aphaenogaster uinta, Camponotus vicinus, Camponotus modoc, Formica cf. aserva, Formica cf. micropthalma, Formica cf. manni, Formica subpolita, Formica cf. subaenescens, Lasius americanus, Manica invidia, Pogonomyrmex salinus, Pogonomyrmex sp. 1, Solenopsis validiuscula, & Solenopsis sp. 3 (new Sierra variant).