Phigalia plumogeraria
In 3 days ~10%
Phigalia plumogeraria, the walnut spanworm moth, is a species of geometrid moth in the family Geometridae. The MONA or Hodges number for Phigalia plumogeraria is 6661. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sacramento | 🇺🇸 United States | |
| 2 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Walnut Spanworm Moth sighting in San Francisco on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 416th 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 Walnut Spanworm Moth in San Francisco on a given day, so our monthly data shows no clear season.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Walnut Spanworm Moth sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 2 cities where we can rate Walnut Spanworm Moth sightings, San Francisco ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Sacramento (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Walnut Spanworm Moth is recorded against all the insects logged in San Francisco (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.
