Eupeodes corollae
In 3 days ~20% in a week ~50%
Eupeodes corollae is a very common European species of hoverfly. Adults are 6–11 millimetres (0.24–0.43 in) in body length. Males and females have different marking on the abdomen; males have square commas on tergites 3 and 4, whereas females have narrow commas. Larvae feed on aphids. This species has been used experimentally in glasshouses as a method of aphid control, and to control scale insects and aphids in fruit plantations.
E. corollae is found across Europe, North Africa and Asia. Adults are often migratory. External images For terms see Morphology of Diptera Wing length 5-8·25 mm. Male abdomen with pre-genital segment very large and conspicuous. Genitalia large. Yellow spots reach the side margin of tergites 3 and 4.Scutellum mainly yellow-haired. Female frons with white dust spots and junction between black ground colour and yellow spots straight.
The species is distributed in Afghanistan, Africa (as a whole), Bhutan, China, Japan, Pakistan, Europe (as a whole) and India. In India, the species is primarily distributed in the northern and north-eastern part of the country, comprising Assam, Arunachal Pradesh, Chhattisgarh, Himachal... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Camargue | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 6 | Addo Elephant National Park | 🇿🇦 South Africa | |
| 7 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 8 | Cévennes National Park | 🇫🇷 France | |
| 9 | Table Mountain National Park | 🇿🇦 South Africa | |
| 10 | Garden Route National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jerusalem | 🇮🇱 Israel | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Algiers | 🇩🇿 Algeria | |
| 4 | Kuwait City | 🇰🇼 Kuwait | |
| 5 | Liverpool | 🇬🇧 United Kingdom | |
| 6 | London | 🇬🇧 United Kingdom | |
| 7 | Tel Aviv | 🇮🇱 Israel | |
| 8 | Copenhagen | 🇩🇰 Denmark | |
| 9 | Tehran | 🇮🇷 Iran | |
| 10 | Madrid | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a Migrant Hover Fly sighting in Barcelona on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 100th most-seen of the 381 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
October to June
In those months about 10% of wildlife watchers report a Migrant Hover Fly in Barcelona on a given day, against under 5% in July to September, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Migrant Hover Fly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
13th of 43
Of the 43 cities where we can rate Migrant Hover Fly sightings, Barcelona ranks 13th at about 10%. The best odds are in Jerusalem (Israel, about 20%), Birmingham (United Kingdom, about 20%) and Algiers (Algeria, about 20%).
Same family: Syrphidae
The closest relatives of the Migrant Hover Fly that you can see in Barcelona (family Syrphidae, Hover Flies) are Marmalade Hover Fly (about 20%), Common Drone Fly (about 10%) and Stripe-Eyed Lagoon Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Migrant Hover Fly is recorded against all the insects logged in Barcelona (35 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.
