Hydrelia albifera
In 3 days ~10%
Hydrelia albifera, the fragile white carpet moth, is a moth in the family Geometridae. The species was first described by Francis Walker in 1866. It is found from Newfoundland to British Columbia, south in the east to the Gulf states. The habitat consists of deciduous and mixed-wood forests.
The wingspan is 16–18 mm. There is one generation per year in the north, while two may occur further south. Adults are on wing from May to August. The larvae feed on the leaves of Cornus stolonifera, Cornus alternafolia and Betula papyrifera. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Fragile White Carpet 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Fragile White Carpet in Toronto on a given day, so our monthly data shows no clear season.
Only Toronto, in our data
Toronto is the only city on Wallace's Line with enough records to rate Fragile White Carpet sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Fragile White Carpet that you can see in Toronto (family Geometridae, Geometer Moths) are Chickweed Geometer Moth (about 10%), Pale Beauty (about 10%) and Single-Dotted Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Fragile White Carpet 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.
