On a visit to the Great Saltee Island last year I saw lots of these moths flying around the ground hugging plants. I had to hold my camera under the plant to get these pictures as they seldom landed on the top & when they did they moved very fast.
I mistakenly thought it was a Burnet moth but on asking an expert today i now know it's a Cinnibar moth ~Tyria jacobaeae

found during May to August. Britain and Ireland. Medium-sized black moth, red markings on the forewing, hindwings mostly red. Often found near common ragwort, although sometimes on other ragworts and groundsels.

This species is so named due to the colour of the hindwings and the markings on the forewings which make it unmistakeable. There is little variation although on rare occasions the pinkish markings are replaced with yellow, or the forewing is red with a black border or the wings are completely black.Easily disturbed by day and flies in sunshine. Also flies after dark.

Susan