Many many small black ants, including some of their soldier members.
Feeding on the arils surrounding the seeds out of these capsules' fruits on the ground (from the canopy tree above _Didymocheton muelleri_), in this, lowlands wet tropics, dense canopy rainforest. 2015 November 20th 2:02 pm .
I only know that these ants identify to the entomological Ant family : Formicidae.
Please take this family rank identification with 'grains of salt',
check these ants and if you know more, please inform us all of any more identification resolution .