Insects Feeding
on these Plants:
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Oxypolis rigidior (Cowbane) [Apiaceae]
(observations are from Wilhelm & Rericha and Williams)
Heteroptera (True Bugs)
Pentatomidae: Cosmopepla bimaculata [feeds on seeds] Wm2004
Lepidoptera (Butterflies, Skippers, & Moths)
Papilionidae: Papilio polyxenes (Black Swallowtail) [larvae feed on foliage] WR2017