Did you know?
Up one levelIt’s a spider, it’s a crab…. no it’s a fly!
Many cavers and bat workers have observed small but conspicuous, shiny, black domes on the roofs of caves occupied by bats (Fig 1). When curiosity drove me to put one of these domes under a microscope, it was clear that these tiny structures are some organisms: the pupae (or immature stage) of insects.



