The last member of the Gambino family indicted this week for running a prostitution ring involving underage girls turned himself in to the FBI last night.

Steven Maiurro, 31, contacted the feds yesterday after feeling pressure because his mug shot had been shown on TV.

He met the G-men at a restaurant on Staten Island at 8 p.m. and they took him to Manhattan federal court.

Maiurro was one of 14 alleged wiseguys — including reputed boss Daniel Marino –indicted Tuesday for a slew of old-school Mafia crimes like murder and racketeering, in addition to the hooker ring.

Maiurro and othersposted ads on Craigslist pimping out girls as young as 15, and drove them to johns around the city and New Jersey, authorities said.

Maiurro was charged with sex trafficking.