Bald Bee Fly

Bald Bee Fly

Geron calvus

Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10% in a week ~20%

19 Verified sightings at Toronto
18 In 1 park From 2019 to 2026
August Best month
☀️ Diurnal When it's spotted

About the Bald Bee Fly

Geron calvus is a species of bee fly in the family Bombyliidae. It is found in the northeastern United States from Virginia north to Ontario, Canada. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Great Smoky Mountains National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Bald Bee Fly in Toronto?

Rare

Under 5% of wildlife watchers report a Bald Bee Fly sighting in Toronto on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 704th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Bald Bee Fly in Toronto?

Any time of year

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

What time of day is best to see a Bald Bee Fly?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most Bald Bee Fly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Bald Bee Fly?

Only Toronto, in our data

Toronto is the only city on Wallace's Line with enough records to rate Bald Bee Fly sightings: under 5% of wildlife watchers there report one on a given day.

Where does the Bald Bee Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Bald Bee Fly is recorded against all the insects logged in Toronto (19 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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