Scoparia basistrigalis
In 3 days ~10% in a week ~20%
Scoparia basistrigalis is a species of moth of the family Crambidae. It was described by Henry Guard Knaggs in 1866 and it is found in Europe. The wingspan is 20–23 mm. The moth flies in July depending on the location. The larvae feed on various mosses, such as Mnium hornum. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Base-Lined Grey sighting in London on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 1059th most-seen of the 1504 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.
June
In that month about 10% of wildlife watchers report a Base-Lined Grey in London on a given day, against under 5% in July to May, the lowest months.
Among the best
Of the 2 cities where we can rate Base-Lined Grey sightings, London ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Helsinki (Finland, under 5%).
GBIF citizen-science records
It is estimated from how often the Base-Lined Grey is recorded against all the insects logged in London (22 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.
