Callophrys viridis
In 3 days ~10% in a week ~30%
Callophrys viridis, the coastal green hairstreak, is a species of butterfly in the family Lycaenidae. It is endemic to California. 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 Coastal Green Hairstreak sighting in San Francisco on a given day, based on 217 verified sightings from GBIF citizen-science data. It is the 101st 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 to May
In those months about 10% of wildlife watchers report a Coastal Green Hairstreak in San Francisco on a given day, against under 5% in June to February, the lowest months.
Only San Francisco, in our data
San Francisco is the only city on Wallace's Line with enough records to rate Coastal Green Hairstreak sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Coastal Green Hairstreak is recorded against all the insects logged in San Francisco (217 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.
