Last week Dave brought me some moths that he wanted me to look more closely and one of them looked like another ultimella. Superficially rather like the much commoner Parsnip Moth Depressaria heraclei and some other Depressaria this one is disctinctively small and the dark lines continue through to the end of the wing without interruption.
On Sunday night I caught a Depressaria which looked less distinctive. It wasn't nearly so small although it did measure to within the top end of the range for ultimella. It was also more strongly marked than any of the ultimella I'd seen before, though the markings did seem consistent with ultimella. I wasn't 100% sure - it had quite warm tones reminding me a bit of chaerophylli though I didn't think it could be that species. I decided to dissect both moths and check.
Dave's turned out to be a male ultimella and mine a female ultimella. So two records of Fen Flat-body Depressaria ultimella, both in VC28 (West Norfolk vice county) where there had only been one record previously.
Fen Flat-body Depressaria ultimella (male, gen det), collected from Dereham by DN, 3rd May
Fen Flat-body Depressaria ultimella (female, gen det), North Elmham, 10th May
Other new moths for the year on Sunday night were Common Marble Celypha lacunana, Dark-barred Twin-spot Carpet, Common Pug, Pebble Prominent and Lesser Swallow Prominent.
Common Marble Celypha lacunana, North Elmham, 10th May
Dark-barred Twin-spot Carpet (male, gen det), North Elmham, 10th May
Pebble Prominent, North Elmham, 10th May
Lesser Swallow Prominent, North Elmham, 10th May
I also recorded Little Dwarf Elachista canapennella, Brindled Flat-body Agonopterix arenella, Chinese Character, Red Twin-spot Carpet, Brindled Beauty, 2 Waved Umbers, Swallow Prominent, Pale Tussock, 2 Muslin Moths and 2 Nut-tree Tussocks.
Pale Tussock, North Elmham, 10th May