If bugs did disperse what are the costs and benefits of accepting a host plant of either species?

How could a dispersing bug know what species of plants it would be settling on? A bug can know what bug it is landing on by sight, smell and taste. All insects disperse, even those without wings, so the question contains a false assumption and is therefore unanswerable. In general, the contribution of any particular trait to an organism's fitness depends on the details of the life cycle. Without knowing those details, it's impossible to say.

your answer is "the 1950's"

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells