Estigmene acrea
The eggs are a yellowish color.  They are laid in clusters on the host plant leaves.  The Salt Marsh Caterpillar is highly variable in color.  It ranges from pale yellow to dark brownish-black.  It has many soft hairs.  The hairs are longer towards the end of the body.  The thoracic and abdominal segments have a few rows of either orange or black warts.  The chrysalis hibernates in a cocoon.