These are apparently very ornate eggs of an insect. I’m told they’re not from butterfly or moth.They are magnified in the image (probably 15x). They were attached to a sedge, Carex hormathodes, high among rocks along the coast of Narragansett Bay in RI. I have never been able to figure out what they might be from.
We don’t recognize your eggs, but suspect they might be from some Hemipteran or True Bug. We are posting in the hopes that one of our readers might be able to assist you. We are also posting the date you printed on the photo, August 12, 2004, as that might be significant.