This looks a lot like bird poop; however, it’s just a camouflage tactic of the giant swallowtail caterpillar (Papilio cresphontes). This species is often called the “orangedog” as they feed on members of the citrus family throughout their larval stage. They can be a pest to young citrus trees, though mature trees can tolerate a fair amount of feeding. Sacrificing a few leaves is well worth it to see the beautiful butterfly this caterpillar will become. See photos and read more here.
Giant swallowtail caterpillar (Papilio cresphontes), this species often called the “orangedog”.
Zack Snipes, ©2022, Clemson Extension
