Monarchs and Julia Butterflies: Danaus plexippus and Dryas julia. For all the Science Center people, here is the question of the day: is that a Danaus gillippus on the far left-hand side of the photo? It's the one with the dark brown wings and the white spots on the outside. Also, I'm not positive, but I think that's a red admiral (Vanessa atalanta) or a Buckeye (Junonia coenia) on the orange. Any suggestions?