 A female that sees a male may approach slowly or wait. The male then walks erect and displays by waving his legs and palps. If the female does not run away, she gives a "propulsive display" first. If the male stands his ground and she does not run away or repeat the propulsive display, he approaches and, if she is mature, they copulate, the male inserting the tip of one of his palpal bulbs into the female's copulatory opening, using the first palp that made scraping contact .: 459 – 464 If the female is sub-adult (one moult from maturity), a male or sometimes a sub-adult male of P. fimbriata may cohabit in the female's capture web .: 467 Portia species usually mate on a web or on a dragline made by the female .: 518 P. fimbriata typically copulates for about 100 seconds, while other genera can take several minutes or even several hours .: 518: 465 Unlike in some other Portia species, females of P. fimbriata from Queensland do not eat their mates during courting, nor during: 464 or after copulation.
