| State | County | Site | Route | Number of Surveys | Number of Species |
|---|---|---|---|---|---|
| IL | Cook | Bluff Spring Fen | Old Route | 8 | 35 |
| IL | Lee | Nachusa Grasslands | Old Route | 5 | 24 |
| IL | Lake | Ryerson Conservation Area | Main Route | 6 | 10 |
| IL | Cook | Somme | Old Prairie Grove | 5 | 16 |
| IL | Cook | Spring Creek | Spring Lake Old Route | 6 | 24 |
Illinois Butterfly Monitoring Network
The Illinois Butterfly Monitoring Network engages citizen scientists in the process of collecting quantitative data on butterfly populations.