A pair of thieves riding on a motor scooter snatched necklaces from pedestrians before speeding away in two separate instances in the Bronx, authorities said.

In the more recent incident — around 12:45 a.m. July 4 — surveillance footage shows the bandits speeding along the sidewalk near West 190th Street and Jerome Avenue in Kingsbridge Heights, where they snatched the jewelry from a 54-year-old man before riding off, cops said late Tuesday.

They also struck just days earlier, at 3 a.m. June 29, when they approached a 19-year-old man at the intersection of Aqueduct Avenue and West 183th Street, about half a mile away. One of the men grabbed the victim’s necklace before the pair rode off, police said.

Cops are looking to question the men in the video.