Pachygaster atra
In 3 days ~10% in a week ~20%
Pachygaster atra, the dark-winged black, is a European species of soldier fly. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dark-Winged Black sighting in London on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 688th 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 and July
In those months about 10% of wildlife watchers report a Dark-Winged Black in London on a given day, against under 5% in August to May, the lowest months.
Yes
Of the 5 cities where we can rate Dark-Winged Black sightings, London has the highest daily chance: under 5%. Next come Warsaw (Poland, under 5%) and Kyiv (Ukraine, under 5%).
GBIF citizen-science records
It is estimated from how often the Dark-Winged Black is recorded against all the insects logged in London (24 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.
