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What we do

Field trips
Insect counts
Ontario Insects newsletter
Butterfly atlas
Moth atlas
Contribute Records
Student symposium
Research grant

About the T.E.A.

Our mission
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About insects

General info
Insects of Ontario
Endangered species
Gardening for butterflies
Rearing Presentation

Contact us


Next Meeting

Meetings are over until September. Join us for our field trips and insect counts over the summer -- see links on the left-hand side of this page.


New monograph

When Alan Wormington passed away, he left behind a mostly-completed 130-page manuscript on the butterflies of Point Pelee National Park. Ross Layberry has filled in many of the gaps, and here is the modified manuscript. We hope that in the future, it will be possible to fully complete the manuscript and publish it under TEA auspices. Contact Alan Macnaughton or Bill Lamond for more details.



Other Insect Activities and News

The latest issue of Ontario Lepidoptera, reporting on butterfly and moth observations for 2017, is at the printer and should be distributed in the 3rd week of May 2018.

Plan now: July 11 to 15. Lepidopterists' Society annual meeting, Ottawa. Their first time meeting in Canada in 30 years. The big event of the summer for those interested in butterfly and moth research.

July 11 & 12; September 11, 2018
Insect and Spider Identification and Ecology Workshops – Day-long courses held at The Arboretum, University of Guelph. Number of registrants is limited.

July 14, 2018
Insect Safari – Insect activities for children. Backus Heritage Conservation Area, 2nd Concession Road, Port Rowan

Butterfly ID workshop with James Kamstra at Ontario Nature's Stone Road Alvar Nature Reserve on Pelee Island on July 29th from 9am to 12pm

July and August 2018
Teaching & Learning with Monarch Butterflies – Monarch Teacher Network of Canada. Workshops are planned for Cambridge, Burlington, Toronto and Windsor so far.

August 11, 2018
Butterflies of Ontario – Biology and Identification - Kortright Centre for Conservation, 9550 Pine Valley Dr., Vaughan, ON. Workshop and guided walk.

August 18, 2018
10th Annual Butterfly Festival at Tommy Thompson Park - activities, nature hikes and educational displays.

August 25 & 26, 2018
The 8th Annual Monarch Butterfly Festival – Monarch tagging, hikes, moth viewing – Bruce Peninsula Provincial Park Visitor Centre, 681 Cape Hurd Road, Tobermory, Ontario. Dates confirmed for 2018.

August 26, 2018
Bug Day – University of Guelph Arboretum (West Entrance), Arboretum Road,  Guelph, Ontario. Free educational event for all age. Bug catching hikes, drawing, exhibits, insect cuising, vendors.
For more information: https://www.facebook.com/events/198438394259070/

August 25, 2018
9th Annual Special Event – Monarch tagging and release -  With displays related to butterfly and moth metamorphosis at Dorothy’s House Museum, 3632 Ganaraska Road/County Road 9, Garden Hill, Ontario

September 1 & 2, 2018
33rd Monarchs and Migrants Weekend at Presqu’ile Provincial Park, Brighton, ON – Monarch tagging, bird banding, guided nature walks, and activities for children.

September 8, 2018
Bug Day! Ottawa – Ottawa Research and Development Centre, Central Experimental Farm, 960 Carling Avenue, Ottawa. Sponsored by Entomological Society of Ontario. Date of 2018 event confirmed. Contact is Dr. Sophie Cardinal - sophie.cardinal@agr.gc.ca

September 8, 2018
Monarch Migration event at Darlington Provincial Park, 1600 Darlington Park Road, Bowmanville, ON – 3 pm at Picnic Area #3 Shelter

  • For more information, call (905) 436-2036

September 8, 2016
Monarch Tagging in Newcastle – Tagging event along the bluffs of the Port of Newcastle. Nets provided or bring your own, and bring your own monarchs. Date for 2018 confirmed. Samuel Wilmot Nature Area


September 15 & 16, 2018
Monarch Tagging Weekend at Cambridge Butterfly Conservatory, 2500 Kossuth Road, Cambridge, ON


September 15-16 and 22-23, 2016
Hawk Cliff Weekends – Monarch Butterfly and Hawk talks, hikes and demonstrations at
Hawk Cliff Woods, 4435 Hawk Cliff Road, Union, ON. Dates confirmed for 2018.
For more information and list of activities later this fall, see:   https://www.thamestalbotlandtrust.ca/events_calendar

September 16, 2018
Monarch Migration Festival – Visitor Centre, Rondeau Provincial Park, R.R.#1, Morpeth, ON. Guided butterfly hikes, Monarch tagging demonstrations, the Adopt-a-Monarch program, a local artisan show, a native plant sale, crafts and face painting and a BBQ lunch!

September 22, 2018
Monarch Tagging Event at Shirley and George Pond Nature Reserve, St. Williams, Ontario (north of Turkey Point). Organized by the Long Point Basin Land Trust. Date for 2018 confirmed.


Annotated checklist of the moths and butterflies (Lepidoptera) of Canada and Alaska. January 2018. 580-page PDF is free - buy hardcover at Pensoft

Prairie Provinces Butterfly Atlas is launched (Sept. 2017). See instructions and explanation.

Latest Bulletin of the Entomological Society of Canada.

Latest Newsletter of the Entomological Society of Ontario

An article on the Azure blues of Ontario has been published by Chris Schmidt and Ross Layberry. This article proposes big changes for the classifications of this genus. See this page for a summary of the article.

Deadlines for submission to our newsletter: January 2018 issue - December 15; and April 2018 issue - March 15; September 2018 issue - August 15.

The publications "Butterflies of Toronto" and "Spiders of Toronto" have been posted online. Copies are also available in Toronto public libraries.

Our seasonal summary for the year 2016, Ontario Lepidoptera, was published in March 2017. The 2017 summary is expected to be published in April 2018.




The TEA is an affiliated group of ProtectNatureTO, a new group which is working towards preserving Toronto's natural heritage. Karen Yukich of the TEA is an active member of this group.


Try out www.e-butterfly.org, a website for entering and displaying butterfly records put together by Maxim Larrivée of the Montreal Insectarium. The TEA is one of the sponsoring organizations. All Ontario data is provided to the TEA seasonal summaries and butterfly atlas project, so “eButterfly” provides an alternative way to store and submit your data. The hope is that this will be easier than entering the data yourself on a spreadsheet, as his site saves each person’s own past butterfly monitoring sites and allows the species observed to be checked off from a provincial species list. eButterfly now accepts records from all across Canada and the US. The TEA has received about 55,00 records records from eButterfly, which is about 20% of all data used in the TEA's butterfly atlas.

Keep in mind that all records submitted to eButterfly are plotted as exact points on the publicly-accessible eButterfly maps, unless you specifically ask for the data to be recorded as “sensitive” or “confidential.” This may be important if you are submitting records of endangered species or you are reporting data from areas for which there is no public access.


Records needed

Do you have Ontario butterfly records that you could make available to the TEA? Over 400 people now contribute records to us annually, which we use to produce the Ontario Butterfly Atlas Online and an annual seasonal summary (Ontario Lepidoptera ) of records for each species for the just-completed year. The seasonal summary also serves as a forum for notes and articles on aspects of biology, distribution, behaviour, survey work, etc. Photographs are also welcome, especially of significant records. Submit your records, notes, articles and photographs to Ross Layberry(rosslayberry@yahoo.ca), Jessica Linton (JessicaLinton86@gmail.com) or Colin Jones (colin.jones@ontario.ca). We encourage people to submit records by December 31, but records for inclusion in the atlas database are welcome at any time -- data from years ago is valuable as well.

More information on the summary, how to submit records, and a downloadable records template can be found at this link or by contacting any of the people above.

Ontario records of odonata are also welcomed. We do not have an odonata atlas or a seasonal summary at the moment, but we like to get there. More information on how to submit records, and a downloadable records template, can be obtained from Colin Jones (colin.jones@ontario.ca), 705-755-2166.


MNR Permit

Raise or collect monarch butterflies or swallowtails? Anyone who is involved in these activities needs a permit. Contact us if you are a TEA member and want to be covered by the club's permit.

Our Publications

Ontario Lepidoptera 2016 appeared in print in April 2017: the latest of our butterfly summaries; moths are also included in this latest version in the form of a short report by Chris Schmitt of Agriculture Canada on notable observations.

Many older TEA publications are now available for free download on our publications page. This includes all back issues of our annual seasonal summary (Ontario Lepidoptera), other than the two most recent issues -- over 2,000 pages of observations spanning more than 35 years. Copies of our newsletter (Ontario Insects) from 1994 to 2015 are also available.

Our Association

The Toronto Entomologists' Association (TEA) welcomes everyone who is interested in the insects of Ontario. We are an association of mostly amateur entomologists. Although our meetings are held in Toronto, we extend far beyond that in our field trips, our membership, and our seasonal summaries. Come to our meetings, join us on our field trips, purchase our publications, apply for the research grant, join us! The TEA is a registered charity and a non-profit educational and scientific organization formed to promote interest in insects, to encourage co-operation among amateur and professional entomologists, to educate and inform non-entomologists about insects, entomology and related fields, to aid in the preservation of insects and their habitats and to issue publications in support of these objectives.

Membership in the TEA

Anyone with an interest in insects is encouraged to join the Toronto Entomologists' Association. Please see our Membership Page for more details.

Did You Know?

TEA member Don Davis holds the Guiness Record for documenting the "longest migration of a butterfly." A monarch he tagged and released at Presqu'ile Provincial Park near Brighton, Ontario in September 1986 was recovered alive the following April at Austin, Texas, having spent the winter in Mexico at the overwintering sites.

Stay in Touch!

We can send you regular emails about coming activities -- join the list. You will be informed of meetings, insect counts, and field trips.