Venusia pearsalli
In 3 days ~10% in a week ~20%
Venusia pearsalli, or Pearsall's carpet moth, is a moth in the family Geometridae. The species was first described by Harrison Gray Dyar Jr. in 1906. It is found in western North America, from Alaska, Alberta and British Columbia, through Washington and Oregon to California.
The wingspan is about 21 mm. The forewings are pale grey with rows of narrow black lines. Adults are on wing in spring. The larvae feed on Acer circinatum, Alnus incana tenuifolia, Alnus rubra, Alnus viridis sinuata, Betula, Cornus nuttalli, Quercus garryana, Crataegus, Malus, Populus tremuloides, Populus trichocarpa and Salix. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Pearsall's Carpet Moth sighting in Seattle on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 306th most-seen of the 428 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Pearsall's Carpet Moth in Seattle on a given day, so our monthly data shows no clear season.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Pearsall's Carpet Moth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Pearsall's Carpet Moth sightings, Seattle has the highest daily chance: under 5%. Next come Vancouver (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Pearsall's Carpet Moth is recorded against all the insects logged in Seattle (8 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.
