Place the index card where ants are seen. Allow ants to recruit to the sugar source. Put ants on the index card into a plastic bag, then place the bag in the freezer. The cold temperatures will slow the ants down or kill them. When they are immobilized, the ants can be easily tapped into a vial of alcohol and submitted for identification.
Inspection Find the source of the ants.
Place bait or granules where the ants are foraging or nesting. If trails are not obvious, placing an index card with a dab of honey or sugar water where ants have been seen may help locate established trails as ants recruit to the sugar source. In general, treatments are not effective if they are not placed where ants are found. Clean windows of dead insects. These ants will feed on dead insects.