Although these spiders live in colonies consisting of many individuals, each spider acts and breeds individually and there is not any specialization of role as there is with social insects.
Some species are nearly eusocial, lacking only a specialized caste system and a queen.
The monogamy hypothesis, formulated by Jacobus Boomsma, is currently the leading hypothesis concerning the evolution of eusociality and uses Hamilton's kin selection approach in a way that applies to both haploid and diploid organisms.
This ant is similar to Strumigenys minutula but is larger (workers up to 3.2 mm in length), hairier and with straighter mandibular shafts.