Striped Deer Fly

Striped Deer Fly

Chrysops vittatus

Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10%

10 Verified sightings at Toronto
July Best month

About the Striped Deer Fly

Chrysops vittatus is a species of deer fly in the family Tabanidae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

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

Before you go

What are the chances of seeing a Striped Deer Fly in Toronto?

Rare

Under 5% of wildlife watchers report a Striped Deer Fly sighting in Toronto on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 1068th 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 Striped Deer Fly in Toronto?

Any time of year

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

Is Toronto the best place to see a Striped Deer Fly?

Among the best

Of the 2 cities where we can rate Striped Deer Fly sightings, Toronto ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%).

Where does the Striped Deer Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Striped Deer Fly is recorded against all the insects logged in Toronto (10 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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