Police have identified the man wanted for fatally shooting his ex-girlfriend’s new beau in a Bronx subway station, officials said Saturday.

Suspect Rafael Hollis, 29, got into an argument with his former flame and her current boyfriend inside the 167 Street B/D station at about 6:30 p.m. Friday, police sources said.

That’s when Hollis pulled out a gun and shot the 25-year-old man, identified by police as James Cubille, in the stomach, police said.

Cubille was taken to Lincoln Medical Center and pronounced dead.

Hollis — who has no prior arrests — is described as 5 foot 8 and 160 pounds, the NYPD said.