A catheter and introducer needle assembly, including a flexible catheter and a catheter hub having an outer surface portion. The assembly includes an introducer needle disposed in the catheter, a needle shield having a resilient clip adapted to flex between first and second positions. The resilient clip includes a cantilevered arm with a pawl. In the resilient clip's first position, the cantilevered arm is flexed so that the pawl frictionally contacts the catheter hub's outer surface portion to retain the needle shield with the catheter hub. In the second position, the pawl no longer frictionally contacts the hub's outer surface, thereby permitting needle shield displacement relative to the catheter hub.