'Real Housewives of Miami' Star Arrested for Punching Hobo in Nuts

"Real Housewives of Miami" star Peter Rosello was arrested for battery today after socking a homeless man in the balls last week, this according to law enforcement.

20-year-old Rosello -- the son of housewife Alexia Echevarria -- was arrested for simple battery, which was categorized as a felony on the police report because Rosello attacked a homeless person.

As we reported, Florida has a law that classifies attacks on homeless people as hate crimes, meaning they carry stricter penalties.

He's currently being held on $5,000 bond.

TMZ broke the story ... Rosello stupidly posted video of the incident online last week, showing him sneaking up on a sleeping homeless man and punching him in the groin. The homeless man was contacted by police shortly after and the man decided to press charges.