An Eciton hamatum raiding column concentrates its forces on an unfortunate ant nest on the Amazonian forest floor:
A closer look reveals imposters running in the columns:
What are they?
Ten Myrmecos points to the first commentator to pick the family. The cumulative points winner for today through the month of February will win their choice of 1) an 8×10-sized print from my photo galleries, or 2) a guest post here on Myrmecos.