Dichrorampha vancouverana
In 3 days ~10% in a week ~20%
Dichrorampha vancouverana, the tanacetum root moth, is a moth of the family Tortricidae. 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 a Tansy Root Moth sighting in Portland on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 378th 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 a Tansy Root Moth 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 Tansy Root Moth sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tansy Root Moth is recorded against all the insects logged in Portland (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.
