CENTRAL FLORIDA CRITTER OF THE DAY: Eastern Black Swallowtail Butterfly Caterpillar (Papilio polyxenes)
Larval host: carrot family (Apiaceae) including parsley (Petroselinium crispum), dill (Anthum graveolens), fennel (Foeniculum vulgare), mock bishop’s weed (Ptilimnium capillaceum)
In my yard they use Florida Native Plant WATER COWBANE (Tiedemannia filiformis) and this guy is shown eating that.
Despite having mock bishops weed in my yard, I have never seen this species use it.
There are color variations in adults.
Learn more: http://butterfliesofamerica.com/t/Papilio_polyxenes_a.htm
Shown on Florida Native Plant: WATER COWBANE (Tiedemannia filiformis)
older instar larva:
photo of Adults: