Leucozona lucorum
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Blotch-Winged Hoverfly sighting in Cairngorms National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 189th most-seen of the 300 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 July
In those months about 10% of wildlife watchers report a Blotch-Winged Hoverfly in Cairngorms National Park on a given day, against under 5% in August to April, 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.
Only Cairngorms National Park, in our data
Cairngorms National Park is the only park on Wallace's Line with enough records to rate Blotch-Winged Hoverfly sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Blotch-Winged Hoverfly is recorded against all the insects logged in Cairngorms National Park (8 verified sightings from 2019 to 2026), 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.
