Sorhagenia nimbosus
In 3 days ~10%
Sorhagenia nimbosus, the midrib gall moth, is a moth in the family Cosmopterigidae. It was described by Annette Frances Braun in 1915. It is found in North America, where it has been recorded from British Columbia, Washington and California.
Adults have been recorded on wing from March to October. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Coffeeberry Midrib Gall Moth sighting in San Francisco on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 387th most-seen of the 737 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 Coffeeberry Midrib Gall Moth in San Francisco on a given day, so our monthly data shows no clear season.
Only San Francisco, in our data
San Francisco is the only city on Wallace's Line with enough records to rate Coffeeberry Midrib Gall 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 Coffeeberry Midrib Gall Moth is recorded against all the insects logged in San Francisco (18 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.
