An insect that’s usually seen as unglamorous here enjoys its 15 minutes of fame.
The fly was on a plastic window in oblique sun. Iridescence (literally, ‘rainbow’ colours) appears both on the window scratches and on part of the left wing (although both window and wing are colourless and transparent), illustrating the principle of structural colour.
The detailed structure of the fly’s wings, as with all insects, awes me.
Photo taken at Rosyth Halt railway station, northbound-platform shelter, Fife, Scotland, about 3pm BST, 25th June 2009.