Insects Feeding
on this Plant

Carex lacustris
(Lake Sedge) [Cyperaceae]
(Observations are from Vaurie, Bouseman et al., Opler & Krizek)

Coleoptera (Beetles)
Curculionidae: Sphenophorus costicollis (Sedge Billbug) Vau1983

Lepidoptera (Butterflies, Skippers, & Moths)
Hesperiidae: Euphyes dion (Dion Skipper) [found in wet areas, mostly in northern half of IL] Bou2006 OK1984, Euphyes dukesi (Duke's Skipper) [found in southern tip of IL] Bou2006 OK1984, Poanes viator (Broad-winged Skipper) [host plant of inland populations of this skipper] OK1984; Nymphalidae: Satyrodes appalachia (Appalachian Brown) OK1984