 When meeting another of the same species , P. fimbriata does not stalk but displays by moving quickly and smoothly , and displays at 4 to 27 centimetres away . It raises its legs , its body sways from side to side , and the palps are lowered below the chelicerae ( " fangs " ) . This is very different from the stalking it uses when encountering another salticid of a different species , despite receiving the same visual stimulus , the sight of the other 's large anterior @-@ median eyes . Although P. fimbriata is influenced by pheromones much more than is usual among salticids , visual cues alone are enough to start displays and distinguish members of the same species from other salticids , even if neither partner moves . The spindly , fringed legs of Portia species may identify members of the same species , as well as concealing these spiders from other salticid species . 
