Location of sites in Southern Illinois, United States, from which syrphids were collected. Many sites were revisited several times. Map created in Google My Maps.

  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. https://doi.org/10.3897/BDJ.8.e57331