The groper whose photo was snapped by the plucky co-ed he had just assaulted on the Union Square subway platform was arrested yesterday, cops said.

Froylan Andrade, 39, molested CCNY senior Shyane DeJesus, 22, at around 9:50 a.m. Oct. 23 as she waited for a No. 6 train, cops said.

DeJesus bravely chased after her attacker and took his picture with her BlackBerry.

“I’m glad I fought back. I’m going to defend myself,” DeJesus told The Post last week.

Andrade was nabbed at his apartment in Elmhurst, Queens, after police received an anonymous tip from Crime Stoppers.

He was charged with sex abuse.