Is there such a thing as a glowworm? I found what appeared to be a firefly in my garden. When I picked it up, I found that it was a wormlike creature with a white bottom and the ability to “light up” just like a firefly. Also, what is the extent of the firefly season here in Vermont, and what are the determining factors in the number of fireflies seen around a yard?
Glowworms are firefly larvae. The wingless females of some species are also known as glowworms. The larval form lasts for about two years, during which time the larvae feed on snails and slugs (so don’t get rid of them). We don’t know the extent of the firefly season in Vermont, but as for determining factors, warm, humid conditions are best. Sue Hardwick of the Sigma Firefly Scientists Club says, Can’t be too hot, can’t be too cold, can’t have too much rain, can’t have too little. They’re kind of fragile.”
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