Damselflies, so insubstantial, so bright, so horizontal and so difficult to draw. I love these strange insects. They flit round the edges of summer like shards of electric blue glass. They live for two or three years under water, rapaciously gorging themselves. Hungry, grey, ugly larvae which then emerge into the light as slim, polished darts. With only two weeks in such splendid guise, they must dance and shimmer and skim and mate and die.