This is one of my favourite moths, a Latticed heath (Chiasmia clathrata, from the Greek chiasma, meaning formed like a cross, and clathrum, meaning lattice or grate, a reference to the lovely interlaced and criss-crossing patterns on its wings).
As well as flying in the night time, the Latticed heath also flies by day, which is how I’m able to see them, though they’re very good at hiding in amongst the long grass and wildflowers. I saw my first for 2019 on 23 May at Cosmeston, and I’ve since seen them at most of my regular haunts, Grangemoor and Hamadryad Parks in Cardiff, and Lavernock Nature Reserve.
It’s a smallish moth, with a wingspan between 20 and 25mm, and can be found around clovers and trefoils and lucerne, which are the plants its caterpillars feed on. The first adults can be seen in May and June, and then there’s a second generation that flies in August and September.