Crambidae » Pyraustinae
This small moth has always been a regular visitor to my garden, yet I have always grown mint, so that is not really very surprising. Within the past year I have added Water Mint to my garden pond, and it was on this plant I discovered this moth which looked like it was laying eggs. See image below.
It is both a day flying moth and a night flying moth. The adults can be seen March to October, usually in two generations. Found where the larva food plant mint is found, such as gardens and meadows.
The forewings are usually purple with golden markings in fresh specimens, but as they age the purple turns browner like in the image above. Possibly confused with Pyrausta purpuralis.
See about caterpillar here.
© Pete Hillman June 2017.