I have just returned from two weeks in Benodet and every morning the site had caterpillars crawling around. They were falling during the night from the conifer trees. My grand daughter sat on one on a deck chair and had a very nasty sting from the hairs on the insect. The sting mark was the whole length of the insect and it came up as a slight swelling. We treated it with TCP and Savlon but she is still conscious of a tingling feeling after four days. Anybody any ideas what these caterpillars are and is the sting serious?