Rhingia rostrata
In 3 days ~20% in a week ~40%
Rhingia rostrata is a small species of hoverfly, some 7 to 10 millimetres (0.28 to 0.39 in) in length, with a wing span of 11 to 16 mm (0.43 to 0.63 in). It is common in many parts of Europe from March until November, though is slightly less common than Rhingia campestris in many parts of it range. In Britain it is only found in southern England. It has a broad orange abdomen, but lacking the black line along the side of the abdomen as in Rhingia campestris. Also living Rhingia rostrata has an orange scutellum, though this fades to brown in dead specimens. But it still has the distinctive long snout of all Rhingia species. Larvae are associated with cow dung. Adults feed on nectar and pollen. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom |
With luck
About 10% of wildlife watchers report a Grey-Backed Snout-Hoverfly sighting in Birmingham on a given day, based on 31 verified sightings from GBIF citizen-science data. It is the 264th 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.
April to September
In those months about 10% of wildlife watchers report a Grey-Backed Snout-Hoverfly in Birmingham on a given day, against under 5% in October to March, the lowest months.
Yes
Of the 2 cities where we can rate Grey-Backed Snout-Hoverfly sightings, Birmingham has the highest daily chance: about 10%. Next come London (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Grey-Backed Snout-Hoverfly is recorded against all the insects logged in Birmingham (31 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.
