| Species | Butterflies | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 |
| Acadian Hairstreak |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
| Alfalfa Butterfly |
73 |
0 |
0 |
3 |
1 |
16 |
11 |
1 |
10 |
6 |
17 |
5 |
3 |
| American Copper |
44 |
0 |
0 |
1 |
0 |
9 |
19 |
2 |
1 |
0 |
4 |
1 |
7 |
| American Painted Lady |
28 |
0 |
0 |
1 |
2 |
5 |
6 |
8 |
0 |
2 |
2 |
2 |
0 |
| Appalachian Eyed Brown |
122 |
1 |
0 |
0 |
17 |
15 |
8 |
13 |
10 |
2 |
12 |
20 |
24 |
| Baltimore |
611 |
5 |
24 |
14 |
2 |
15 |
46 |
9 |
77 |
40 |
42 |
96 |
241 |
| Banded Hairstreak |
62 |
3 |
0 |
0 |
0 |
6 |
24 |
4 |
6 |
1 |
12 |
3 |
3 |
| Black Dash |
60 |
0 |
1 |
0 |
14 |
3 |
5 |
1 |
16 |
0 |
6 |
0 |
14 |
| Black Swallowtail |
21 |
0 |
1 |
3 |
1 |
7 |
2 |
0 |
0 |
4 |
0 |
3 |
0 |
| Broad-winged Skipper |
3 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
1 |
0 |
0 |
0 |
0 |
| Bronze Copper |
30 |
0 |
1 |
3 |
0 |
0 |
0 |
0 |
1 |
1 |
3 |
20 |
1 |
| Buckeye |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Cabbage White |
490 |
34 |
29 |
73 |
18 |
40 |
6 |
63 |
25 |
38 |
40 |
87 |
37 |
| Clouded Sulphur |
602 |
1 |
2 |
6 |
28 |
122 |
61 |
48 |
96 |
9 |
98 |
76 |
55 |
| Compton's Tortoise Shell |
9 |
0 |
1 |
0 |
0 |
2 |
5 |
1 |
0 |
0 |
0 |
0 |
0 |
| Coral Hairstreak |
11 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
3 |
6 |
0 |
0 |
1 |
| Crossline Skipper |
13 |
0 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
9 |
2 |
| Delaware Skipper |
530 |
0 |
2 |
0 |
13 |
67 |
40 |
26 |
64 |
19 |
42 |
185 |
72 |
| Dion Skipper |
32 |
0 |
0 |
0 |
5 |
1 |
3 |
2 |
8 |
1 |
4 |
4 |
4 |
| Dorcas Copper |
274 |
0 |
0 |
0 |
105 |
33 |
14 |
3 |
37 |
0 |
52 |
6 |
24 |
| Dun Skipper |
28 |
0 |
0 |
0 |
7 |
9 |
2 |
0 |
0 |
0 |
3 |
0 |
7 |
| Eastern Comma |
47 |
0 |
4 |
3 |
1 |
4 |
9 |
2 |
4 |
2 |
3 |
8 |
7 |
| Eastern-tailed Blue |
56 |
0 |
0 |
1 |
1 |
17 |
7 |
0 |
8 |
0 |
2 |
12 |
8 |
| Edward's Hairstreak |
445 |
0 |
0 |
0 |
1 |
12 |
38 |
25 |
16 |
4 |
133 |
170 |
46 |
| European Skipper |
478 |
104 |
59 |
165 |
34 |
13 |
8 |
53 |
4 |
11 |
14 |
6 |
7 |
| Eyed Brown |
160 |
8 |
3 |
12 |
4 |
0 |
8 |
7 |
18 |
28 |
14 |
35 |
23 |
| Giant Swallowtail |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
| Gray Comma |
23 |
0 |
0 |
0 |
0 |
0 |
3 |
3 |
0 |
6 |
1 |
9 |
1 |
| Great Spangled Fritillary |
435 |
5 |
9 |
4 |
27 |
76 |
54 |
30 |
25 |
17 |
27 |
103 |
58 |
| Hackberry Butterfly |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| Harris' Checkerspot |
12 |
5 |
1 |
5 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
| Harvester |
2 |
0 |
0 |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Hoary Edge |
29 |
5 |
5 |
1 |
0 |
1 |
5 |
1 |
0 |
7 |
1 |
3 |
0 |
| Hobomok's Skipper |
13 |
0 |
1 |
6 |
0 |
0 |
1 |
1 |
0 |
2 |
1 |
1 |
0 |
| Hobomok's Skipper (Pocohantas) |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| Juvenal's Duskywing |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
| Least Skipper |
34 |
5 |
1 |
2 |
0 |
0 |
2 |
1 |
6 |
6 |
0 |
9 |
2 |
| Little Glassywing |
30 |
0 |
0 |
0 |
2 |
0 |
3 |
5 |
2 |
2 |
0 |
12 |
4 |
| Little Wood Satyr |
529 |
4 |
18 |
3 |
29 |
49 |
38 |
63 |
54 |
115 |
48 |
73 |
35 |
| Long Dash |
20 |
0 |
1 |
0 |
0 |
0 |
2 |
2 |
0 |
7 |
0 |
6 |
2 |
| Milbert's Tortoise Shell |
22 |
0 |
0 |
1 |
17 |
4 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Monarch |
118 |
0 |
3 |
9 |
5 |
12 |
13 |
10 |
7 |
19 |
2 |
14 |
24 |
| Mourning Cloak |
45 |
0 |
1 |
0 |
1 |
13 |
14 |
2 |
2 |
1 |
4 |
2 |
5 |
| Mulberry Wing |
195 |
0 |
0 |
0 |
23 |
23 |
17 |
6 |
50 |
1 |
27 |
25 |
23 |
| Mustard White |
88 |
0 |
0 |
0 |
0 |
7 |
9 |
3 |
7 |
8 |
3 |
42 |
9 |
| Northern Broken Dash |
82 |
0 |
0 |
0 |
10 |
4 |
12 |
3 |
9 |
5 |
5 |
27 |
7 |
| Northern Cloudywing |
16 |
0 |
2 |
0 |
0 |
5 |
1 |
3 |
0 |
3 |
1 |
1 |
0 |
| Northern Pearly Eye |
79 |
2 |
2 |
0 |
14 |
11 |
7 |
6 |
2 |
5 |
11 |
14 |
5 |
| Painted Lady |
6 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
3 |
0 |
| Pearl Crescent |
44 |
1 |
2 |
7 |
0 |
4 |
4 |
3 |
5 |
5 |
3 |
3 |
7 |
| Peck's Skipper |
8 |
1 |
2 |
3 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
| Poweshiek Skipperling |
62 |
0 |
0 |
0 |
0 |
0 |
6 |
1 |
16 |
1 |
2 |
21 |
15 |
| Question Mark |
45 |
0 |
3 |
1 |
1 |
19 |
3 |
4 |
1 |
0 |
4 |
3 |
6 |
| Red Admiral |
137 |
2 |
0 |
3 |
6 |
4 |
13 |
82 |
1 |
4 |
8 |
12 |
2 |
| Red-spotted Purple |
15 |
2 |
2 |
4 |
0 |
0 |
0 |
2 |
0 |
1 |
0 |
4 |
0 |
| Roadside Skipper |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
| Silver-bordered Fritillary |
24 |
0 |
3 |
1 |
0 |
1 |
0 |
1 |
1 |
8 |
6 |
1 |
2 |
| Silver-spotted Skipper |
173 |
6 |
5 |
10 |
4 |
24 |
32 |
11 |
10 |
20 |
13 |
17 |
21 |
| Silvery Checkerspot |
8 |
1 |
3 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
2 |
1 |
| Southern Cloudywing |
15 |
2 |
1 |
2 |
0 |
0 |
0 |
2 |
1 |
5 |
0 |
1 |
1 |
| Spicebush Swallowtail |
7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
3 |
0 |
1 |
1 |
| Striped Hairstreak |
8 |
0 |
0 |
0 |
0 |
0 |
5 |
0 |
0 |
0 |
0 |
2 |
1 |
| Summer Azure |
79 |
0 |
0 |
0 |
2 |
15 |
12 |
10 |
3 |
8 |
4 |
11 |
14 |
| Tawny Edged Skipper |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
| Tawny Emperor |
57 |
0 |
3 |
0 |
0 |
15 |
13 |
0 |
2 |
0 |
5 |
0 |
19 |
| Tiger Swallowtail |
28 |
0 |
0 |
5 |
0 |
1 |
1 |
2 |
6 |
7 |
0 |
3 |
3 |
| Viceroy |
30 |
1 |
3 |
5 |
1 |
2 |
2 |
2 |
1 |
1 |
1 |
10 |
1 |
| White Colias |
13 |
0 |
0 |
0 |
0 |
0 |
3 |
0 |
5 |
1 |
2 |
0 |
2 |
| Wood Nymph |
143 |
0 |
0 |
0 |
29 |
20 |
3 |
6 |
8 |
5 |
19 |
37 |
16 |
