Just returned from revisiting the Mowsbury Hill location where I saw glow worms last year. There were only two and both were receiving the attention of males, so they were no longer interested in putting on a glow-show, hence this rubbish picture, which was the best! Was able to photo males though, which are winged and look very different from the females. They have huge eyes, presumably to help spot the dim glow of the females. Females stop glowing after mating so I nearly left it too late to see them!