Ethmia marmorea
In 3 days ~10% in a week ~20%
Ethmia marmorea is a moth in the family Depressariidae. It is found in North America in the lower parts of the Great Basin mountain ranges and the Rocky Mountains from south-eastern British Columbia and the eastern parts of the Pacific states to northern and central Colorado and central Chihuahua. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Ethmia marmorea sighting in Portland on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 338th most-seen of the 507 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.
July
In that month about 10% of wildlife watchers report an Ethmia marmorea in Portland on a given day, against under 5% in August to June, the lowest months. That is one of Portland's driest months, with about 10 mm of rain against 250 mm in December.
Only Portland, in our data
Portland is the only city on Wallace's Line with enough records to rate Ethmia marmorea sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Lepidoptera
The closest relatives of the Ethmia marmorea that you can see in Portland (order Lepidoptera, Butterflies and Moths) are Large Yellow Underwing (about 20%), Gray Hairstreak (about 20%) and Western Tiger Swallowtail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ethmia marmorea is recorded against all the insects logged in Portland (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.
