Insects Feeding
on these Plants:
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Oryzopsis pungens (Mountain Ricegrass) [Poaceae]
(A scientific synonym of this plant is Piptatheropsis pungens. This observation is from the Natural History Museum)
Lepidoptera (Butterflies, Skippers, & Moths)
Nymphalidae: Oeneis chryxus (Chryxus Arctic) [this butterfly is found north of Illinois] NHM2010