 A "P. labiata" from Los Baños instinctively detours round the back of "S. pallida" while with plucking the web in a way that makes the prey believe the threat is in front of it.In areas where "S. pallida" is absent, the local members of "P. labiata" do not use this combination of deception and detouring for a stab in the back.In a test to explore "P. labiata"′s ability to solve a novel problem, a miniature lagoon was set up, and the spiders had to find the best way to cross it.