How to tell if your aphid is done reproducing.

If you want to know if a parthenogenetic pea aphid is all done reproducing, look at her abdomen. If there are eyespots, she still has embryos in her. If not, she's done. If she is post-reproductive, she's likely to move to the edge of the colony, where risk of predator attack is highest. Details are here, in a paper written with some very talented undergraduates at Bates College.