We have Argentine Ants - Also called: Little black ants, sweet feeding ants, sugar ants, piss ants, tiny black ants! We knew there was an infestation in the motorhome when we left Mexico. If we left anything sweet out it was soon found by the ants. They are tiny and not very annoying as they are do not seem to crawl on people and they hide when there is activity in the place. They only seem to come out when it is quiet.
When we got back home, there was no sign of them so we thought the northern climate was too harsh for them and they had died off. Not so! When we got to the lake this weekend I left a smear of jam on the counter and in about two hours, there were a hundred or so tiny ants in it!
I Googled Argentine Ants and was told not to spray as that will only distress the colony and cause it to break up into several more colonies. Instead, I will buy ant bait which they will collect and take back to the colony to feed the nest. The Queen will die and the colony will be destroyed. That is the plan anyway!
The wingless worker ant (most commonly spotted), is light to dark brown, about 1/12 to 1/8 inch long . The antennae are strongly elbowed (12 segments) and there is a single node in front of the abdomen (a waist). Queens are 1/6 to 1/4 inch long.
How to Identify Argentine Ants: