I hadn't seen one of these moths for years, so when I noticed this on near an outside light at work, I had to stop and admire it. Although the photograph doesn't do it justice, that yellowish patch on the wing is almost iridescent; it looks like gold leaf or, as some common names ('Slender burnished brass' or 'Scarce burnish') suggest, like polished brass. These moths (454 Kb pdf file) were discovered in New Zealand in 1984 and feed on a wide range of cultivated plants, including legumes and brassicas.
As usual, I had all the camera gear with me so was able to photograph it. Who knows when I'll get another chance?
[7 May 2014, Olympus OM-D EM-1, 60mm f/2.8 macro , ISO 200, 1/200 at f/8; diffused flash]
All content © 2014 Pete McGregor