Entomological Society of Ontario
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Welcome to the Entomological Society of Ontario

The Entomological Society of Ontario (ESO) is an active society, dedicated to furthering entomology through annual meetings and publications. Over the past 149 years, it has served as an association of persons interested in the science of entomology. Today, as always, members of the Society have varied entomological interests; physiology, taxonomy, ecology and pest management. Although founded by amateurs, whose active participation is encouraged today the majority of the Society’s members are professionals, sharing their interests and expertise while working either in Provincial or Federal governments, industry or universities within Ontario as well as other parts of Canada and the world.


The Entomological Society of Ontario's Diversity Statement

The Entomological Society of Ontario is dedicated to fostering an equitable, diverse, and inclusive environment within our community. We are committed to continuously promoting and integrating EDI principles within our society's activities, ensuring that all individuals, regardless of background, feel welcome, valued, and empowered. Beyond our society, we aim to extend these values across the broader field of entomology, striving to create equitable opportunities for all individuals. We will continue to support initiatives that promote diversity, equity, and inclusion by providing resources, facilitating access to opportunities, and encouraging the development of a more inclusive scientific community. Through these efforts, we hope to contribute to a more representative, innovative, and accessible future for entomology.

The ESO recognizes and supports all victims of racism. We realize that no words can mend the injustice our black or minority members may face each day, but we stand with you. We hope all ESO members give their support too. Science is for everyone.

Save the Date: The 162nd Annual General Meeting of Entomological Society of Ontario

Save the Date: The 162nd Annual General Meeting of the Entomological Society of Ontario will be October 24-26, 2025 at the Royal Botanical Gardens Home - Royal Botanical Gardens in Burlington ON. The meeting will be held in conjunction with the Ontario Pest Management Conference (OPMC) Home | Ontario Pest Management Conference. 


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​The New
ESO Newsletter is here!

Volume 30, Issue 1
(Spring 2025)

Journal of the Entomological Society of Ontario 
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ESO Bug Eye Photo Contest
The Entomological Society of Ontario is holding its annual Bug Eye Photo Contest. The contest is open to all Ontario residents, no entry fee.

Click here for more information

2018 ESO Bug Eye Photo Contest Winners


The ESO Webmaster is Kaitlyn Fleming. 

The ESO Website was designed by Trevor Burt
​(Webmaster from 2013-2019).
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Entomological Society of Ontario
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