If we consider only the bugs living on golden rain tree and the effects of selection on the golden rain tree population, we see this is an example of isolation leading to selection, which in turn could lead to local adaptation. Choice 1 of 5:temporal; directional Choice 2 of 5:habitat; disruptive Choice 3 of 5:mechanical; disruptive Choice 4 of 5:habitat; directional Choice 5 of 5:behavioral; directional