How did it know that it was spotted and would be camouflaged on that particular part of the quilt? Can an insect see itself?
Anyway, fearing that we would squash it in the night if we left it where it was, I carefully put it outside onto the window ledge, but only after I'd photographed it!
Oh, and on the subject of photographing tiny things, I've just ordered a closeup lens so I can photograph even tinier subjects. :)