May 24, 2022 by mgnvmmfPapillo_polyxenes_black_swallowtail_early_instar_on_fennel_Oct_MMF An eastern black swallowtail (Papillo polyxenes) early instar resembles bird droppings on host plant fennel in October. Photo © Mary Free About mgnvmmf Previous Post:Papillo_polyxenes_black_swallowtail_early_instar_on_fennel_Oct_MMF