Orange Sulphur Butterfly

Orange sulfur butterfly photographed a Raccoon Creek State Park, PA

One of the most difficult of the Eastern U.S. butterflies to photograph (macro-) this Colias eurytheme. Most of the time we cannot tippy-toe up to them…they speed away once you are 10 feet away from them. Their escape flight is usually just 2 feet above the ground and generally to a landing 40 feet away!

This one though is at the juice bar, sipping at Red Clover (Trifolium pratense). Red Clover must be especially tasty. It’s visited by such a variety of butterflies and bees. While this Orange Sulphur butterfly was feeding at Raccoon Creek State Park in September, our very careful approach was tolerated.

Funny about things…Orange sulphurs migrated eastward from western states in the 1920’s and red clover was an alien wildflower, introduced from Europe. Neither were found east of the Mississippi when George Washington became our first President.

During this past winter, which carried this species through to Spring? Adult, Larva or Pupa or Egg?

Jeffrey

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