A fluorescing tube in the ultra violet spectrum was employed to turn the egg into a huge moth attracting device last night. White cotton gauze stretched across the doorway was intended as the stage for a flickering theatre of moths in flight and a platform on which they could land for solo performances in both silhouette and spotlight.

The grey or dark dagger below (it is only possible to tell them apart by an examination of genitalia) was a memorable participant. In the caterpillar state they love blackthorn, so the nearby thicket is perhaps its own home and the axis of it’s nocturnal world.