 While only "P. fimbriata" (in Queensland) captures cursorial spiders in their nests, all "Portia" species steal eggs from empty nests of cursorial spiders.The venom of "Portia" species is unusually powerful against spiders.When a "Portia" stabs a small to medium spider (up to the "Portia"′s weight), including another "Portia", the prey usually runs away for about 100 to 200 millimetres, enters convulsions, becomes paralysed after 10 to 30 seconds, and continues convulsing for 10 seconds to 4 minutes.