I'm here to talk about the scourge of the universe, the Argentine Ant. These recent invaders of the US are the most pernicious species of super-ant I've ever encountered. They are relentless, unstoppable and obnoxious, and we must find ways to fight back.
You may not have encountered this plague yet. They've only just arrived in the southwestern US after having already invaded New Zealand and Australia. Even if you have run into them you may not yet be aware of what you're dealing with. Prepare for the horror.
The Argentine Ant is tiny - less than 1/16th of an inch in length, but their strength is in their numbers and their unique organization. Unlike other ants who spread slowly and have a centralized nest with a single queen, the Argentine Ant has highly mobile colony outposts with lots and lots of queens in the same community, about one queen per hundred ants. This allows them to spread rapidly and reproduce in huge numbers. Unlike most other ants they actually like human homes and will even nest inside homes when it's convenient - usually behind baseboards or under appliances. Also unlike other ants tthey are opportunistic explorers. They will ride on animals or people undetected because of their small size and then drop off in an area where there is food. From there they track back to their colony, leaving a scent trail to follow back to the food source.
They will eat almost anything, including caulk and adhesives, but they particularly like greasy materials. In fact, they nested in our kitchen drain at one point feasting on the grease trap. They are accomplished aphid herders, but because of their huge numbers they also need a lot of food from other sources. What's really scary is what happens once they find a food source and set a trail back to the colony. At that point they swarm. Literally thousands of ants descend on the food and either devour it on the spot or haul it off to feed the queen. A swarm can appear in your house almost instantly in a spot where there were no ants minutes before. They will also nest and swarm in cars and other vehicles and there's nothing more annoying than getting swarmed by a billion tiny ants while driving. Swarms are also known for shorting out electrical outlets and appliances with zillions of dead bodies when they come in to eat adhesives and glue.