Digrammia irrorata
In 3 days ~10% in a week ~20%
Digrammia irrorata is a moth of the family Geometridae first described by Alpheus Spring Packard in 1876. It is found in the western United States and south-western Canada (from Oklahoma to California, north to British Columbia and Alberta).
The wingspan is 23–26 mm. Adults are on wing from March to June in the northern part of the range. There are several generations in the south. The larval food plant is unknown. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Denver | 🇺🇸 United States | |
| 3 | Los Angeles | 🇺🇸 United States | |
| 4 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Pale-Lined Angle sighting in San Diego on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 420th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Pale-Lined Angle in San Diego on a given day, so our monthly data shows no clear season.
Among the best
Of the 4 cities where we can rate Pale-Lined Angle sightings, San Diego ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Austin (United States, under 5%), Denver (United States, under 5%) and Los Angeles (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Pale-Lined Angle is recorded against all the insects logged in San Diego (13 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.
