The nicknames assigned by federal investigators to some bank robbers are drawn largely from their appearances or modus operandi.

In March, the F.B.I. said it was seeking a bank robber in California who used wigs and facial hair disguises, calling him the Shaggy Bandit. Another in Massachusetts was named the Faceless Bandit because he was completely masked. And in April, investigators sought a robber in Knoxville, Tenn., whom they called the Edentulism Bandit because witnesses said he was missing several teeth.

The latest to appear on F.B.I. “Wanted” posters is the Traveling Bandit, who the authorities said on Friday has robbed at least seven banks in six states in less than a month.

The Traveling Bandit has covered more than 3,200 miles in a string of robberies that started on Dec. 28 at a Capital Bank in Aventura, Fla., about 20 miles north of Miami. He progressed from there to holding up a bank in North Carolina, then two in Tennessee, and one each in Alabama and Illinois. His most recent one was on Thursday in Price, Utah.