Nine species of butterflies seen here today with 3 new species. 
Orange Sulfur 
Pearl Crescent
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| Monarch |
Seen in my yard. Past few sunny days of low winds & temps 78-82 degrees has kept the butterflies going. 11 species of butterflies still flying including a Monarch, several Common-checkered, several Pearl Crescents and more. ID's below the pictures.
| Common-checkered |
| Cloudless Sulphur |
| Common Buckeye - Rosa Form |
| Eastern-tailed Blue |
| Fiery |
| Painted Lady |
| Pearl Crescent |
| Variegated Fritillary |
Yesterday, I had the best butterfly day of the year here at my home & probably the best in the yard since I moved to PA. It had rained the past few days so the butterflies were anxious to be out & about again as the sun was shining brightly. I saw 19 species of butterflies with about 6 clearwing moths which included both Hummingbird & Snowberry.
| Painted Lady |
| Huron Sachem |
| Pearl Crescent |
| Eastern-tailed Blue |
| Zebulon |
| Monarch |
| Hummingbird Clearwing |
| Snowberry Clearwing |
| Fiery |
| Red-banded Hairstreak |
| Red Admiral |
| Monarch on Pinkweed |
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| Common Yellowthroat |
| Pearl Crescent |
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| Great Egret |
| Eastern-tailed Blue |
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| Monarch & Sachem on asters |
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| Great Egret |
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| Blue Dasher |
I was shocked to go back and find the main field with butterfly weed and other wildflowers has been mostly cut to the ground in prime season for the butterflies. I was told by a Nature Conservancy volunteer, they planted them by mistake instead of the grasses they received a grant to plant so are the staff are cutting everything now so they can replant in Oct. Very sad not to wait another 4-6 weeks. Below are some of the butterflies from the day. I missed missing any Zebra swallowtails but happy to see mating Sleepy Orange.
| Mating Sleepy Orange |
| Great Spangled Fritillary |
| Summer Azure |
| Orange Sulphur |
| American Lady |
| Eastern-tailed Blue |
| Monarch Caterpillar |
| Eastern Tiger Swallowtail |
| Clouded Sulphur |
| Great Spangled Fritillary |
| Pearl Crescent |
| Clouded Sulphur |
| Common Buckeye |
A visit to the Holtwood Nature Center in Lancaster County, PA yesterday. First visit but will go back. First time seeing Zebra Swallowtail in PA. 22 species of butterflies seen. Lots of nectar for the butterflies and host plants.
| Zebra Swallowtail |
| Eastern Tiger Swallowtail |
| Eastern-tailed Blue |
| Grand Spangled Fritillary |
| Sachem |
| Sleepy Orange |
| Gary Hairstreak |
| Common Buckeye |
| Monarch |
| Zabulon |
| Pearl Crescent |
| Variegated Fritillary |
| Zebra Swallowtail |