What are the chances of seeing a Four-Lined Arches in Sacramento?
Rare
Under 5% of wildlife watchers report a Four-Lined Arches sighting in Sacramento on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 222nd most-seen of the 386 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.
When is the best time to see a Four-Lined Arches in Sacramento?
May and October
In those months about 10% of wildlife watchers report a Four-Lined Arches in Sacramento on a given day, against under 5% in June–September and November–April, the lowest months. Those are among Sacramento's driest months, with about 25 mm of rain a month against 120 mm in December.
Is Sacramento the best place to see a Four-Lined Arches?
Yes
Of the 3 cities where we can rate Four-Lined Arches sightings, Sacramento has the highest daily chance: under 5%. Next come San Francisco (United States, under 5%) and San Diego (United States, under 5%).
Which relatives of the Four-Lined Arches live in Sacramento?
Same family: Noctuidae
The closest relatives of the Four-Lined Arches that you can see in Sacramento (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 10%), Armyworm Moth (about 10%) and Subterranean Dart (about 10%), with each one's daily chance of a sighting.
Where does the Four-Lined Arches sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Four-Lined Arches is recorded against all the insects logged in Sacramento (11 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.