I believe Miles keeps them. His YT channel is The Ant Network. From what I understand, their interest in food varies, so they must have constantly shifting food sources. This is of hunteri, and being in CO, yours is likely invidia, but they are similar enough that it likely still applies. In the wild, I have seen them nest in sandy soils, that are near a body of water. hunteri lays only after hibernation, and I would assume invidia is the same. The queens are semiclaustral, and I believe Miles recommended putting dirt or bark in the test tube. that's all I know, as I unfortunately have never been able to find a queen.
Species being kept:
Solenopsis "plebeius", Camponotus maritimus, Formica cf. subaenescens, Formica cf. aerata, Lasius cf. americanus, Lasius aphidicola, Lasius brevicornis, Lasius nr claviger, Nylanderia vividula, Temnothorax nevadensis, Temnothorax chandleri, Temnothorax arboreus Solenopsis validiuscula, Solenopsis truncorum, Solenopsis xyloni, Formica perpilosa, Formica cf. lasiodes, Formica cf. neogagates Pogonomyrmex californicus, Pogonomyrmex salinus, and Myrmecocystus testaceus!!!!
Hoping to find this year:
Myrmecocystus, Liometopum occidentale, Camponotus essigi, Camponotus fragilis, Manica bradleyi, Formica perpilosa, Pheidole hyatti, and a Parasitic Formica sp.
People are stupid. It explains a lot...