Crambus sperryellus
In 3 days ~10% in a week ~20%
Crambus sperryellus is a moth in the family Crambidae. It was described by Alexander Barrett Klots in 1940. It is found in the US states of California and adjacent Arizona. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Sperry's Grass-Veneer sighting in San Diego on a given day, based on 51 verified sightings from GBIF citizen-science data. It is the 172nd most-seen of the 693 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
In that month about 10% of wildlife watchers report a Sperry's Grass-Veneer in San Diego on a given day, against under 5% in August to June, the lowest months. That is one of San Diego's driest months, with almost no rain against 55 mm in February.
Only San Diego, in our data
San Diego is the only city on Wallace's Line with enough records to rate Sperry's Grass-Veneer sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sperry's Grass-Veneer is recorded against all the insects logged in San Diego (51 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.
