I have collected a few links mainly dealing with Pheidole pallidula ... some might be interesting and some not. I have not read all papers.
"Internest sex-ratio variation and male brood survival in the ant Pheidole pallidula"
"Dynamics of collective exploration in the ant Pheidole Pallidula"
"Colony sex ratios vary with breeding system but not relatedness asymmetry in the facultatively polygynous ant Pheidole Pallidula"
"Colony sex ratios in the facultatively polygynous ant Pheidole Pallidula: A reanalysis with new data"
"Colony Sex Ratios, Conflict between Queens and Workers, and Apparent Queen Control in the Ant Pheidole desertorum"
"The role of competition by dominants and temperature in the foraging of subordinate species in Mediterranean ant communities"
Between-species differences of behavioural repertoire of castes in the ant genus Pheidole: a methodological artefact?
"Food supplementation alters caste allocation in a natural population of Pheidole flavens, a dimorphic leaf-litter dwelling ant"
"The complexity and hierarchical structure of tasks in insect societies"
"Seed predation by ants in south-eastern Spain (Desierto de Tabernas, Almería)"
"Sex Allocation Conflict in Ants: When the Queen Rules"
"Significant reproductive skew in the facultatively polygynous ant Pheidole pallidula"
"Dual mechanism of queen influence over sex ratio in the ant Pheidole pallidula"
"Scavenging by Pheidole pallidula: a key for understanding decision-making systems in ants"