Rhopalomyia floccosa
In 3 days ~10% in a week ~30%
Rhopalomyia floccosa, the sagebrush woolly stem gall midge, is a species of gall midges, insects in the family Cecidomyiidae. It induces galls on the host Artemisia californica, California sagebrush. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Francisco | 🇺🇸 United States | |
| 2 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Sagebrush Woolly Stem Gall Midge sighting in San Francisco on a given day, based on 158 verified sightings from GBIF citizen-science data. It is the 113th most-seen of the 737 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March–April and September
In those months about 10% of wildlife watchers report a Sagebrush Woolly Stem Gall Midge in San Francisco on a given day, against under 5% in May–August and October–February, the lowest months.
Yes
Of the 2 cities where we can rate Sagebrush Woolly Stem Gall Midge sightings, San Francisco has the highest daily chance: under 5%. Next come Los Angeles (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Sagebrush Woolly Stem Gall Midge is recorded against all the insects logged in San Francisco (158 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.
