"Hotaru #9" by Yoshiyasu Nishikawa, distributed under a CC BY-NC-ND 2.0 license.


We are an international group of firefly scientists and enthusiasts.


Our group has more than 200 members representing over 20 countries, including ecologists, chemists, geneticists, artists, and naturalists, brought together by a shared sense of wonder and delight in these bioluminescent beetles. We want to learn more about their unique biology, and work together to protect threatened species.

If you have a firefly related question, or would like to share an observation, please visit our Facebook group.


Celebrate World Firefly Day with us on July 6-7, 2019!

Click the picture above to learn more about how to get involved.



The Fireflyers International Network (FIN) was founded in 2007. Here is what we have accomplished over the past 10 years, and our goals for the next 100 years.

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In the news

Are you a fireflyer? Click here for information on the next International Firefly Symposium in 2020, as well as other FIN activities. 

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