Parma incredibly threw away a 3-1 lead in this six-goal thriller, as Catania prove they never give up.
The Ducali had to do without the suspended Gabriel Paletta and Stefano Morrone, while the visitors missed David Suazo, Marco Biagianti, Cristian Llama, Nicolas Spolli and the banned Gennaro Delvecchio. Sebastian Giovinco returned from injury.
Parma broke the deadlock with their first real shot on target. Francesco Modesto was allowed far too much space and time between the Catania defenders to get his glancing header on the end of a Daniele Galloppa cross from the right, surprising everyone.
Catania managed to draw level thanks to a defensive howler, as Modesto missed his clearance from a corner, allowing Sergio Almiron to tap in from close range.
However, Parma restored their advantage soon after, because Giovinco went on the counter-attack and spread to the right flank for Jonathan Biabiany to smash under the bar.
The Ducali made it 3-1 before the break, as Giovinco again created with a through ball for Sergio Floccari to finish off with an angled drive.
Giovinco went on a slalom through the Elefantini defence only to hit the side-netting, while Mariano Andujar parried a Biabiany volley.
Fabiano Santacroce smashed into the back of Alejandro Gomez to give Catania a penalty on 74 minutes. Francesco Lodi took the spot-kick duties and fired powerfully above Antonio Mirante to make it 3-2.
That proved a turning point, as Catania clawed their way back to 3-3! Catellani had only been on the field for four minutes when he got on the end of a corner with his spectacular right-foot volley to stun the Stadio Tardini.
It is remarkably the second consecutive 3-3 result at Parma, who were also pegged back in a six-goal thriller by Lecce.