A Silver-stripe Grass-veneer Catoptria margaritella - the third Portland record - was a surprise overnight capture in the Obs moth-traps; 3 Rusty-dot Pearl were the only routine immigrants caught.
Silver-stripe Grass-veneer - Portland Bill, 2nd July 2016 © Martin Cade
...presumably a wind-blown stray from the high moors of the West Country, but appreciably earlier in the season than the previous two island records that were at the Obs on 26th July 1997 and at Sweethill on 30th July 2014 (is the species on the wing in early July in Devon/Cornwall?).