In the UK, you’re most likely to see the common glow-worm, found across Europe and Asia. In the northern hemisphere, ‘glow-worms’ are not worms at all, but beetles from the family Lampyridae. The females don’t have wings and look similar to the larvae. During the day, the female hides underground. At night, she crawls up a plant stem and turns on the light in her abdomen in the hope of attracting a passing mate.
In Australasia, the term ‘glow-worm’ refers to the larvae of little flies that feed on fungi. Some of these fungus gnats are carnivorous, luring prey with a blue-green glow emitted from a light organ at the end of their body. The bioluminescent spectacle of the lethal Arachnocampa luminosa larvae draws tourists from around the world to sites such as Waitomo Cave in New Zealand.
This story is from the March 2021 edition of BBC Wildlife.
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This story is from the March 2021 edition of BBC Wildlife.
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