Chrysogaster solstitialis
In 3 days ~20% in a week ~40%
Chrysogaster solstitialis is a European species of hoverfly. External images For terms see Morphology of Diptera Wing length 6-7·25 mm. Antennae reddish. In front view the distance between the eyes at most equal to the width of an eye. Wings blackish-tinged. Female thorax with purplish reflections. The male genitalia are figured by Maibach, A. & Goeldlin de Tiefenau (1994).
The larva is illustrated by Rotheray (1993). Palaearctic. Ranges from Fennoscandia South to Iberia and the Mediterranean basin, including North Africa. From Ireland Eastwards through of Europe into European parts of Russia, Ukraine and the Caucasus mountains.
Habitat:Wetland and deciduous forest, woodland streams and ponds including Salix carr. Flowers visited include white umbellifers, Cornus, Filipendula, Galium, Sambucus, Senecio jacobaea. The flight period is June to September ( May in southern Europe). The larvae live in pond mud containing debris of fallen twigs and branches.
Biolib Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | Leeds | 🇬🇧 United Kingdom | |
| 4 | Hamburg | 🇩🇪 Germany | |
| 5 | London | 🇬🇧 United Kingdom |
With luck
About 10% of wildlife watchers report a Dark-Winged Chrysogaster sighting in Birmingham on a given day, based on 45 verified sightings from GBIF citizen-science data. It is the 246th most-seen of the 811 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.
May to August
In those months about 10% of wildlife watchers report a Dark-Winged Chrysogaster in Birmingham on a given day, against under 5% in September to April, the lowest months.
Yes
Of the 5 cities where we can rate Dark-Winged Chrysogaster sightings, Birmingham has the highest daily chance: about 10%. Next come Manchester (United Kingdom, under 5%) and Leeds (United Kingdom, under 5%).
Same family: Syrphidae
The closest relatives of the Dark-Winged Chrysogaster that you can see in Birmingham (family Syrphidae, Hover Flies) are Yellow-Haired Sun Fly (about 40%), Marmalade Hover Fly (about 30%) and Tapered Drone Fly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark-Winged Chrysogaster is recorded against all the insects logged in Birmingham (45 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.
