Summer Fishfly
Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10%

9 Verified sightings at Toronto
73 In all 4 parks From 2019 to 2026
December Best month
☀️🌙 Day & Night When it's spotted

About the Summer Fishfly

Chauliodes pectinicornis known as Summer fishfly, is a species of fishfly from North America. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Congaree National Park 🇺🇸 United States
~20%
2 Acadia National Park 🇺🇸 United States
~10%
3 Shenandoah National Park 🇺🇸 United States
~10%
4 Great Smoky Mountains National Park 🇺🇸 United States
~10%

Cities Where Found

# City Country Daily sighting probability
1 Boston 🇺🇸 United States
<5%
2 New York City 🇺🇸 United States
<5%
3 Washington 🇺🇸 United States
<5%
4 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Summer Fishfly in Toronto?

Rare

Under 5% of wildlife watchers report a Summer Fishfly sighting in Toronto on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1212th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.

When is the best time to see a Summer Fishfly in Toronto?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Summer Fishfly in Toronto on a given day, so our monthly data shows no clear season.

What time of day is best to see a Summer Fishfly?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Summer Fishfly sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.

Is Toronto the best place to see a Summer Fishfly?

Among the best

Of the 4 cities where we can rate Summer Fishfly sightings, Toronto ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%), New York City (United States, under 5%) and Washington (United States, under 5%).

Where does the Summer Fishfly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Summer Fishfly is recorded against all the insects logged in Toronto (9 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

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