A Times Square desnuda was arrested — and another got away — after they assaulted a 70-year-old man this weekend, cops said.

Tarrah Merill, 18, and the other painted lady, got into a heated argument with the man on Saturday evening.

Merill allegedly punched the man in the face, cutting his right eye and cheek. The other woman also punched him, cutting the other eye, cheek and forearm.

Cops arrested Merill at about 5:45 p.m. She was hit with a felony assault charge for attacking a person who is 65 or older.

The other desnuda fled south on 7th Avenue and remains at large.

The man was treated for his injuries on scene.