Sudden infestation of very large ants. Help!

[PastTense]

A recent thread:

Ants! (parenthetical used to reach minimum topic length)

After leaving us pretty much alone so far this summer, the local ants this morning mounted a full-scale home invasion. The formicid fiends attacked multiple targets from multiple ingresses seemingly simultaneously. Are they coordinating efforts now?! The dogs’ food bowl – and water bowl! – were the worst hit, but an (I admit) poorly swept kitchen floor, the scrap collector, and both bathrooms also saw brutal action. I don’t know or even want to speculate what they’re after in the bathrooms. Wha…