Leucozona lucorum
In 3 days ~10% in a week ~30%
Leucozona lucorum is a Palearctic and Nearctic species of hoverfly. Leucozona lucorum typically has a wing length of 7 ·75–10 mm. The face is yellow-dusted either side of the shining black median area. The thorax is yellowish-green with long reddish hairs, whilst the scutellum is yellow. The abdomen is black with long and abundant, partly pale yellow or whitish yellow and partly black hairs. A conspicuous brown spot can be found on the wings. The male genitalia and larvae are figured by Dusek and Laska (1967). The larva is figured in colour by Rotheray (1994).
See references for determination. Leucozona lucorum is widely distributed across the Palearctic and the Nearctic regions. In the Palearctic, it occurs from Fennoscandia south to the Pyrenees and North Spain and from Ireland east through North and Central Europe into Turkey and European Russia, the Russian Far East and Siberia and the Pacific coast (Kuril Islands and Japan). It is common in England.
In the Nearctic, it occurs from Alaska south to Oregon and New York. The typical habitat of the species consists of deciduous forest, especially around woodland rides and edges... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cairngorms National Park | 🇬🇧 United Kingdom |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Liverpool | 🇬🇧 United Kingdom | |
| 3 | Manchester | 🇬🇧 United Kingdom | |
| 4 | Dublin | 🇮🇪 Ireland | |
| 5 | Leeds | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Blotch-Winged Hoverfly sighting in Leeds on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 230th most-seen of the 284 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report a Blotch-Winged Hoverfly in Leeds on a given day, against under 5% in June to March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Blotch-Winged Hoverfly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 5
Of the 5 cities where we can rate Blotch-Winged Hoverfly sightings, Leeds ranks 5th at under 5%. The best odds are in Birmingham (United Kingdom, about 10%), Liverpool (United Kingdom, about 10%) and Manchester (United Kingdom, about 10%).
Same family: Syrphidae
The closest relatives of the Blotch-Winged Hoverfly that you can see in Leeds (family Syrphidae, Hover Flies) are Marmalade Hover Fly (about 20%), Tapered Drone Fly (about 20%) and Sun Fly (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blotch-Winged Hoverfly is recorded against all the insects logged in Leeds (8 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.
