Found this little insect on the door frame of my house yesterday 26th April and still present today. With the birding quiet I decided to spend some time trying to identify it. My conclusion was Arge nigripes. The adult of this species is on the wing in April and May whereas the similar Arge berberidis and Arge gracilicornis are much later. This larval foodplant is Rose (rosa). There are 13 species of Arge in the UK: berberidis, ciliaris, cyanocrocea, enodis, expansa, fuscipes, gracilicornis, melanochra, metallica, nigripes, ochropus, pagana, rustica.