I just checked to see when you got this queen, and since it was 2 months ago, a fast growing genus like Dorymyrmex should at least have larvae by now. Maybe try a heating cable, and if there is no progress, I'd say just leave in a drawer and forget about her, and maybe she'll decide to get workers. That's what I do for any seemingly infertile queens.
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...