Hi, i have ants colony, Camponotus paria. , i think population has reached 2000 ants.
months ago i start noticing male winged ants in the formicarium. and soon after they died. the ants colony started to collapse and the colonies start to die. eggs production is either stopped or they eat up the eggs.
now i left with 1/4 of the colony. they stop feeding much too. they spend their time squeeze together and "sleeping". and not moving
they collect the dead body and dump it in the corner of the nest. its the place where they throw their waste. it become like a small mountain of dead ants.