Carpenter ants---- Hello, Your photo could be carpenter ants. That doesn't mean they have a nest in your home. In spring ants move around looking for new nest sites, and looking for food. Different ants need different controls. So first, positively identify the ant--- get a magnifying glass and compare your ant to ID Pictures in the article I have linked below --- --- Here is a link to a carpenter ant article that has ID, and control options --- http://www.extension.umn.edu/garden/insects/find/carpenter-ants/ --- --- If you still can't ID the ant, you may send a sample to MSU's pestid lab --- see http://www.pestid.msu.edu for instructions on how to send a sample. If you do send a sample, mail it early in the week so it arrives on a weekday. --- Thank you for using our service.

Thank you! It does seem like a carpenter ant to me, but we may still mail in the sample to be sure.  

Thanks, again, for the information!