Special features: Could easily be mistaken for a moth, especially when it rests with its wings in a roof-like position - like a noctuid.
The caterpillars are green with a dark brown head.
Latin name: Erynnis tages
Size: Wingspan approximately 25mms
Distribution: Found in many pats of England and Wales, scarce in Scotland, and possibly extinct in Northern Ireland.
Months seen: May to June
Food: Nectar. The caterpillars feed on bird's-foot trefoil or horseshoe vetch
Habitat: Downland, cliffs and dunes