Cinnabar moths are striking images, with red-black wings. They are commonly found in open dunes. Although categorized as a moth, this insect is active during the day. You can find them fluttering about between April and mid August, with the greatest chance in May. The notable black-yellow striped caterpillars live off of ragwort. Sometimes, they will leave this toxic plant totally bare. They store the poison in their skin, which makes them toxic as well. Some people call them zebra caterpillars, due to their pattern. The combination of yellow and black is a well known warning for danger in nature. Just think of wasps! The moths are also toxic.