Volucella zonaria
In 3 days ~50% in a week ~80%
Volucella zonaria, the hornet mimic hoverfly, is a species of hoverfly. These flies are capable of buzz pollination. This species is present in most of Europe, in Tunisia, Iran, Russia (to Far East) and in Mongolia. In Great Britain, it was only known from two specimens prior to 1940, so was regarded as rare. Since then, it has become increasingly widespread in many parts of the South and South East England, often in association with parks and gardens, where adults are usually seen visiting flowers. Elsewhere in England, only a few scattered records exist.
These hoverflies usually inhabit meadows close to forests. Volucella zonaria can reach a length of 25 millimetres (0.98 in), with a wingspan of about 40 mm. These very large and wide hoverflies have reddish-brown shining thorax with dark brown marks, and a reddish-brown scutellum. The head shows a waxy yellow face, with yellow forehead and antennae. The large ovoid compound eyes are reddish with dense and short hairs. In the males they are very close to each other, so that the forehead is very narrow. The abdomen is reddish yellow, with two wide black bands. The underside has broad... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Aigüestortes National Park | 🇪🇸 Spain | |
| 2 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 3 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 4 | Mercantour National Park | 🇫🇷 France | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Triglav National Park | 🇸🇮 Slovenia | |
| 7 | Pyrénées National Park | 🇫🇷 France | |
| 8 | Ecrins National Park | 🇫🇷 France | |
| 9 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 10 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 11 | Wadden Sea National Park | 🇩🇪 Germany | |
| 12 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | Amsterdam | 🇳🇱 Netherlands | |
| 5 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 6 | Copenhagen | 🇩🇰 Denmark | |
| 7 | Ankara | 🇹🇷 Turkey | |
| 8 | Liverpool | 🇬🇧 United Kingdom | |
| 9 | Paris | 🇫🇷 France | |
| 10 | Berlin | 🇩🇪 Germany |
Possible
About 20% of wildlife watchers report a Hornet Mimic Hover Fly sighting in Birmingham on a given day, based on 155 verified sightings from GBIF citizen-science data. It is the 57th most-seen of the 811 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
August
In that month about 40% of wildlife watchers report a Hornet Mimic Hover Fly in Birmingham on a given day, against under 5% in November to April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Hornet Mimic Hover Fly sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 36
Of the 36 cities where we can rate Hornet Mimic Hover Fly sightings, Birmingham ranks 3rd at about 20%. The best odds are in London (United Kingdom, about 30%) and Manchester (United Kingdom, about 20%).
Same genus: Volucella
The closest relatives of the Hornet Mimic Hover Fly that you can see in Birmingham (genus Volucella, Plumehorns) are Lesser Hornet Hoverfly (about 10%), Pellucid Hover Fly (about 10%) and Bumble Bee Hover Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hornet Mimic Hover Fly is recorded against all the insects logged in Birmingham (155 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.
