Western Furcula Moth

Western Furcula Moth

Furcula occidentalis

Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10%

5 Verified sightings at Toronto
August Best month

About the Western Furcula Moth

Furcula occidentalis, the western furcula moth, double-lined furcula or willow kitten, is a moth of the family Notodontidae. It is found from southern Yukon and British Columbia to Nova Scotia, south to Maryland and west to Utah and Oregon.

The wingspan is 32–45 mm. Adults are on wing from April to August in one to two generations per year. The larvae feed on Salix and sometimes Populus species. Larvae can be found from June to September. The species overwinters in the pupal stage. 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 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Western Furcula Moth in Toronto?

Rare

Under 5% of wildlife watchers report a Western Furcula Moth sighting in Toronto on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1544th 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 Western Furcula Moth in Toronto?

Any time of year

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

Where else can you see a Western Furcula Moth?

Only Toronto, in our data

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

Where does the Western Furcula Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Western Furcula Moth is recorded against all the insects logged in Toronto (5 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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