Microchrysa polita
In 3 days ~10% in a week ~30%
Microchrysa polita, the black-horned gem, is a species of soldier fly found in Europe, Asia, and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Black-Horned Gem Fly sighting in London on a given day, based on 36 verified sightings from GBIF citizen-science data. It is the 547th 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 30%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report a Black-Horned Gem Fly in London on a given day, against under 5% in July to April, the lowest months.
4th of 17
Of the 17 cities where we can rate Black-Horned Gem Fly sightings, London ranks 4th at under 5%. The best odds are in Birmingham (United Kingdom, about 10%), Brussels (Belgium, about 10%) and Liverpool (United Kingdom, about 10%).
Same family: Stratiomyidae
The closest relatives of the Black-Horned Gem Fly that you can see in London (family Stratiomyidae, Soldier Flies) are Broad Centurion Fly (about 10%) and Twin-Spot Centurion Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black-Horned Gem Fly is recorded against all the insects logged in London (36 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.
