A 15-year-old Venezuelan migrant busted at least 10 times in the last few months — and believed to be part of a violent crew of young gang members — was arrested again this week for a knifepoint robbery, sources said Wednesday.

The troublesome teen — identified by sources as a member of “Los Diablos de la 42,” a pint-sized offshoot of the vicious Venezuelan gang Tren de Aragua — was cuffed Tuesday, just as The Post was revealing the baby-faced bandit’s shocking exploits.

He’s accused of pulling a knife on a 34-year-old man on Ninth Avenue and West 35th Street at around 7 p.m. on Sept. 30, along with a pal, according to the sources.

The teen and his buddy allegedly body slammed the victim into a pole, flashed a kitchen knife and demanded that he turn over his phone, the sources said.

The man was able to get away unscathed.

Video from the scene helped cops identify the alleged mugger, and they busted him at 59th Street and Columbus Avenue, according to the sources.

The “Little Devil” was waiting to be arraigned on the new charge — but sources said he was likely to be freed again because of his young age and the state’s lenient stance on juvenile criminals.

“This has to be a wake up call to the stakeholders,” one law enforcement source said Wednesday. “To the state legislature who has to decide how we’re going to deal with this problem.

“This kid’s gonna go home today and probably rob somebody else,” the source said. “We can arrest him but we can’t hold him.”

The youngster, whose name is being withheld because of his age, crossed the US border in Texas with his family in May 2023 and was released — with an immigration hearing scheduled for next month, according to sources.

Since May of this year, he has made his presence known in the Big Apple, with at least 10 prior arrests for robbery and grand larceny, sources said.

He was released each time, which means he’s been free to return to the city-funded migrant shelters where he has been shacking up, according to the sources.

The teen has posted menacing photos on social media pages, including Facebook pics where he mimics holding a handgun wit his fingers, sources said.

According to police, he is among about 20 young migrants who call themselves “Diablos de la 42” — or Devils of 42nd Street in Spanish — who operate out of the city shelter at the Roosevelt Hotel.

The youngsters are recruited by older Tren de Aragua members and are dispatched to pull off robberies in the five boroughs — from purse snatchings to, more recently, armed robberies.

New York City’s immigration “sanctuary status” prohibits cops from going into migrant shelters unless they have a warrant or are responding to a 911 call, something sources said has hampered their efforts to stamp out gang activity at the tax-funded facilities.