Tachina fera
In 3 days ~20% in a week ~40%
Tachina fera is a species of fly in the genus Tachina of the family Tachinidae. It was first described by Carl Linnaeus in 1761. This species can be found in the entire Palearctic realm, across Europe as far north as Scandinavia and European Russia. It is also present in Israel and North Asia, east to China, Mongolia, Korea, and Japan, and in North Africa.
These flies inhabit the vegetation of humid regions, meadows, woodland, forests, forest edges, clearings, heath and moorland and natural gardens. Tachina fera can reach a length of 9–14 millimetres (0.35–0.55 in), with a wingspan of 16–27 mm. These tachinids show a grayish upperside of the thorax, due to dense pollinosity, with regular black stripes. The abdomen is yellow orange with a wide black dorsal stripe ending in a point. They are bristly on the thorax and abdomen, especially towards the tip, where they have long thorn-shaped, protruding black bristles. Close to the thorax there is a striking, orange-red and shiny 'bump' called postscutellum, with a thin black edge. The head is yellowish colored, with long antennae, whose second segment is yellow, while the third, much shorter... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Copenhagen | 🇩🇰 Denmark | |
| 4 | Liverpool | 🇬🇧 United Kingdom | |
| 5 | Warsaw | 🇵🇱 Poland | |
| 6 | Essen | 🇩🇪 Germany | |
| 7 | Berlin | 🇩🇪 Germany | |
| 8 | Manchester | 🇬🇧 United Kingdom | |
| 9 | Hamburg | 🇩🇪 Germany | |
| 10 | Prague | 🇨🇿 Czechia |
With luck
About 10% of wildlife watchers report a Common Tachinid sighting in Manchester on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 237th most-seen of the 458 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July to September
In those months about 10% of wildlife watchers report a Common Tachinid in Manchester on a given day, against under 5% in October to June, the lowest months.
Among the best
Of the 17 cities where we can rate Common Tachinid sightings, Manchester ranks 8th at about 10%, level with the leaders once rounded. The best odds are in London (United Kingdom, about 10%), Birmingham (United Kingdom, about 10%) and Copenhagen (Denmark, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Tachinid is recorded against all the insects logged in Manchester (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.
