Rhagoletis completa
In 3 days ~10% in a week ~20%
Rhagoletis completa is a species of tephritid or fruit flies in the genus Rhagoletis of the family Tephritidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Berlin | 🇩🇪 Germany | |
| 2 | Portland | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Walnut Husk Fly sighting in Portland on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 281st 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 and August
In those months about 10% of wildlife watchers report a Walnut Husk Fly in Portland on a given day, against under 5% in September to June, the lowest months. Those are among Portland's driest months, with about 15 mm of rain a month against 250 mm in December.
Among the best
Of the 4 cities where we can rate Walnut Husk Fly sightings, Portland ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Berlin (Germany, under 5%).
GBIF citizen-science records
It is estimated from how often the Walnut Husk Fly is recorded against all the insects logged in Portland (14 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.
