The Public Safety Department said in a statement Monday that 38-year-old Roberto Cabrera arrived on a commercial flight Friday from Lima, Peru, when authorities noticed the bulge and conducted a body search.
The department says Cabrera was carrying the 6-inch titi monkeys in pouches attached to the girdle. Two of the monkeys were dead.
Cabrera was arrested on charges of trafficking an endangered species.
Cabrera told authorities he was carrying the monkeys in a suitcase but decided to put them in his girdle "so the X-rays wouldn't hurt them."
In December 2008, a 29-year-old Spokane woman and her mother were convicted of federal charges related to smuggling a monkey into the United States.
In other monkey news, a truck crash in Ohio left animal carcasses all over a road and the driver's pet monkey stranded atop a utility pole, the AP reports.
The truck was hauling carcasses for a meat processing plant late Monday afternoon when it flipped while going into a curve on a local road in northeast Ohio's Medina County, the state Highway Patrol said. The frightened monkey scampered up the pole after the accident.
Troopers say the truck driver was OK. The monkey had to be coaxed down from its perch.
The meat plant sent another truck to pick up the carcasses. State and county highway crews were sent to help clean up the mess.