LIMASSOL, Cyprus — A man on trial here admitted Wednesday to being a member of the militant group Hezbollah, acting as a courier for the group inside the European Union and staking out locations that Israelis would frequent — in particular a parking lot behind a Limassol hospital and a hotel called the Golden Arches.

In a little-watched proceeding in a small courtroom here, the defendant, Hossam Taleb Yaacoub, 24, described how he would be picked up in a van to meet with his handler, whom he knew only as Ayman, and used code words to confirm his identity.