The stinger nettle plants near my cabin in Bridgeport, NDB were invaded in July with black nettle eating caterpillars. They devoured the nasty plants that we avoid like the plague. A month later they morphed into the most beautiful butterflys (red admirals) and can be seen here now covering a stinger needle plant. Amazing such a beautiful insect is attracted to these plants for food. From stinger nettles to stinger needles.   Submitted By: Kathy Knight