This checklist is complied by Dave Horn. Numbers shown are two-year totals from surverys in 2001 – 2002
| Species | Number |
| Black Swallowtail | 14 |
| Tiger Swallowtail | 16 |
| Checkered White | 1 |
| Cabbage Butterfly | 1249 |
| Clouded Sulphur | 26 |
| Alfalfa Butterfly | 95 |
| Little Sulphur | 1 |
| Bronze Copper | 5 |
| Banded Hairstreak | 1 |
| Gray Hairstreak | 1 |
| Eastern Tailed Blue | 29 |
| Spring Azure | 137 |
| American Snout | 12 |
| Great Spangled Fritillary | 3 |
| Pearl Crescent | 164 |
| Question Mark | 37 |
| Comma | 43 |
| Mourning Cloak | 8 |
| Red Admiral | 71 |
| American Painted Lady | 11 |
| Painted Lady | 15 |
| Buckeye | 21 |
| Red-spotted Purple | 2 |
| Viceroy | 1 |
| Hackberry Butterfly | 93 |
| Tawny Emperor | 10 |
| Northern Pearly Eye | 3 |
| Little Wood Satyr | 1 |
| Common Wood Nymph | 1 |
| Monarch | 64 |
| Silver-spotted Skipper | 64 |
| Checkered Skipper | 50 |
| Common Sooty Wing | 7 |
| Least Skipper | 175 |
| Peck’s Skipper | 9 |
| Northern Broken Dash Skipper | 2 |
| Hobomok Skipper | 3 |
| Zabulon Skipper | 1 |