Every summer, museums get a flurry of requests for invertebrate identifications as the heat brings forth all things many-legged and winged. Here’s a specimen I found on a train in Suffolk (although it may have boarded in Norfolk) on the 1st July this year:
Apologies for the slightly rubbish photos – they were the best I could manage with my phone while on a moving train. Its total length was around 15mm or so.
I’m sure that some of the keen lepidopterists out there will know what it is, so perhaps you could make your suggestion with a cryptic clue in the comments below?