Rocky Bluff (Crab Orchard National Wildlife Refuge) in early spring, a typical forested habitat of Southern Illinois. Collinsia verna (Scrophulariaceae) in bloom. Photo credits LK.

  Part of: Chisausky JL, Soley NM, Kassim L, Bryan CJ, Miranda GFG, Gage KL, Sipes SD (2020) Syrphidae of Southern Illinois: Diversity, floral associations, and preliminary assessment of their efficacy as pollinators. Biodiversity Data Journal 8: e57331.