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HAEHNLE SANCTUARY BUTTERFLIES
Second Haehnle Butterfly Survey ( July 2002 )
By Roger Kuhlman
Ann Arbor, Michigan
Butterflies at Haehnle Sanctuary on July 4 from 10am till 3:30pm. It was extremely hot with temperatures in the low 90's. Dry conditions and the heat probably account for the lower number of species found this year as compared to 2000 (26 vs 31). Still it was a pretty good butterfly day with interesting butterflies like Dorcas Copper, Mulberry Wing, and Dion Skipper found. The fen dominated by a medium-width sedge along the southeastern boundary of the reserve was particularly productive for Dion Skippers. Between last year's July 4 survey and this year's, I have found a total of 36 species at Haehnle. For the whole year, I would expect to find at least 50 species of butterflies at the sanctuary. A total this high would make Haehnle a very good place to butterfly and if I was doing a survey of Jackson county butterflies, Haehnle would be on my list to survey frequently.
Below is the list of butterflies I found at the site:
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| Common Name | Taxanomic Name | 2002 Total | 2001 Total |
| Dorcas Copper | Lycaena dorcas | 26 | 72 |
| Cabbage White | Pieris rapae | 34 | 53 |
| Clouded Sulphur | Colias philodice | 91 | 51 |
| Red Admiral | Vanessa atalanta | 1 | 41 |
| Silver-spotted Skipper | Epargyreus clarus | 9 | 19 |
| Great Spangled Fritillary | Speyeria cybele | 20 | 16 |
| Summer Azure | Celastrina neglecta | 0 | 14 |
| European Skipper | Thymelicus lineola | 30 | 8 |
| White Colias | Colias species female | 3 | 8 |
| Northern Pearly Eye | Enodia anthedon | 3 | 8 |
| Common Wood Nymph | Cercyonis pegala | 2 | 8 |
| Orange Sulphur | Colias eurytheme | 0 | 5 |
| Alfalfa Butterfly | Colias eurytheme | 5 | 0 |
| Question Mark | Polygonia interrogationis | 0 | 4 |
| Little Wood Satyr | Megisto cymela | 6 | 4 |
| Little Glassywing | Pompeius verna | 0 | 4 |
| Banded Hairstreak | Satyrium calanus | 0 | 3 |
| American Painted Lady | Vanessa virgiensis | 1 | 3 |
| American Copper | Lycaena phlaeas americana | 1 | 3 |
| Delaware Skipper | Anatrytone logan | 13 | 3 |
| Monarch | Danaus plexippus | 0 | 2 |
| Viceroy | Limenitis archippus | 2 | 0 |
| Mustard White | Pieris napi | 5 | 2 |
| Baltimore | Euphydryas phaeton | 7 | 1 |
| Appalachian Eyed Brown | Satyrodes appalachia | 7 | 1 |
| Dun Skipper | Euphyes vestris | 0 | 1 |
| Dion Skipper | Euphyes dion | 19 | 0 |
| Least Skipper | Ancyloxpha numitor | 2 | 0 |
| Mourning Cloak | Nymphalis antiopa | 1 | 0 |
| Eastern Comma | Polygonia comma | 0 | 1 |
| Eastern-tailed Blue | Everes comyntas | 10 | 1 |
| Edward's Hairstreak | Satyrium edwardii | 0 | 1 |
| Gray Comma | Polygonia progne | 0 | 1 |
| Mulberry Wing | Poanes massasoit | 4 | 1 |
| Northern Broken Dash | Wallengrenia egeremet | 2 | 1 |
| Southern Cloudywing | Thorybes bathyllus | 1 | 1 |
| Eyed Brown | Satyrodes eurydice | 5 | 1 |
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