Uresiphita reversalis
In 3 days ~20% in a week ~40%
Uresiphita reversalis, the genista broom moth or sophora worm, is a moth in the family Crambidae. It was described by Achille Guenée in 1854. U. reversalis was probably native to Mexico before spreading north and becoming established in Los Angeles by 1930 and the San Francisco Bay Area by 1980. It has since been recorded across the United States and in Cuba, Bermuda, Puerto Rico and Jamaica. Both adults and caterpillars are aposematic. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Padre Island National Seashore | 🇺🇸 United States | |
| 2 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | |
| 3 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | San Antonio | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Mesa | 🇺🇸 United States | |
| 5 | Sacramento | 🇺🇸 United States | |
| 6 | Las Vegas | 🇺🇸 United States | |
| 7 | Phoenix | 🇺🇸 United States | |
| 8 | Dallas | 🇺🇸 United States | |
| 9 | Houston | 🇺🇸 United States | |
| 10 | Los Angeles | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Genista Broom Moth sighting in San Francisco on a given day, based on 522 verified sightings from GBIF citizen-science data. It is the 49th most-seen of the 737 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May to March
In those months about 10% of wildlife watchers report a Genista Broom Moth in San Francisco on a given day, against under 5% in April, the lowest month.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Genista Broom Moth sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 12 cities where we can rate Genista Broom Moth sightings, San Francisco ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Austin (United States, about 10%) and San Antonio (United States, about 10%).
Same family: Crambidae
The closest relatives of the Genista Broom Moth that you can see in San Francisco (family Crambidae, Crambid Snout Moths) are Volupial Mint Moth (about 10%) and California Pyrausta Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Genista Broom Moth is recorded against all the insects logged in San Francisco (522 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.
