Did you put in a starter hole? Decades ago I started several mystery queens with dirt ... and a starter hole along the edge. Be sure to put something dark around the outside, too. And is the moisture evenly distributed through the dirt? Looks like many dry patches possibly?
Formiculture Journals::
Veromessor pergandei, andrei; Novomessor cockerelli
Camponotus fragilis; also separate journal: Camponotus sansabeanus, vicinus, quercicola
Liometopum occidentale; Prenolepis imparis; Myrmecocystus mexicanus
Pogonomyrmex subnitidus and previously californicus
Tetramorium sp.
Termites: Zootermopsis angusticollis
Isopods: A. gestroi, granulatum, kluugi, maculatum, vulgare; C. murina; P. hoffmannseggi, P. haasi, P. ornatus; V. parvus
Spoods: Phidippus sp.