What are the chances of seeing a Scotopteryx alfacaria in Sierra Nevada National Park?
With luck
About 10% of wildlife watchers report a Scotopteryx alfacaria sighting in Sierra Nevada National Park on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 211th most-seen of the 479 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
When is the best time to see a Scotopteryx alfacaria in Sierra Nevada National Park?
July
In that month about 30% of wildlife watchers report a Scotopteryx alfacaria in Sierra Nevada National Park on a given day, against under 5% in September to May, the lowest months. That is one of Sierra Nevada National Park's driest months, with about 30 mm of rain against 130 mm in March.
What time of day is best to see a Scotopteryx alfacaria?
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Scotopteryx alfacaria sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Where else can you see a Scotopteryx alfacaria?
Only Sierra Nevada National Park, in our data
Sierra Nevada National Park is the only park on Wallace's Line with enough records to rate Scotopteryx alfacaria sightings: about 10% of wildlife watchers there report one on a given day.
Which relatives of the Scotopteryx alfacaria live in Sierra Nevada National Park?
Same family: Geometridae
The closest relatives of the Scotopteryx alfacaria that you can see in Sierra Nevada National Park (family Geometridae, Geometer Moths) are Vestal (about 20%), Idaea sericeata (about 20%) and Yellow Shell Moth (about 20%), with each one's daily chance of a sighting.
Where does the Scotopteryx alfacaria sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Scotopteryx alfacaria is recorded against all the insects logged in Sierra Nevada National Park (21 verified sightings from 2019 to 2026), 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.