Sighting for September 1, 2017

Henry Kindervatter

Plainsboro Preserve
Middlesex County, NJ

I arrived around 9:30 am with the temperature just below 60º F and bright sun out. There was an intermittent slight breeze and I did not expect much in the way of activity by butterflies, but was pleasantly surprised and ended up staying until 2:30 pm. There seems to have been a recent irruption of Red-banded hairstreaks, as I observed 21, most of which were fresh! There were also a large number of Red-spotted purples and the largest Common wood-nymphs I have ever seen - about 1¼ times their normal size.

  • Cabbage White 1
  • Red-banded Hairstreak 21
  • Eastern Tailed-Blue 4
  • 'Summer' Spring Azure 1
  • Pearl Crescent 14
  • Red Admiral 1
  • Common Buckeye 7
  • Red-spotted Purple 17
  • Appalachian Brown 7
  • Common Wood-Nymph 5
  • Monarch 2
  • Silver-spotted Skipper 3
  • Horace's Duskywing 1
  • Zabulon Skipper 7
  • Least Skipper 3
  • Tawny-edged Skipper 1
  • Sachem 19

Red-spotted Purple

Red-banded Hairstreak

Appalachian Brown

Horace's Duskywing