Hydriomena furcata
In 3 days ~10% in a week ~20%
Hydriomena furcata, the July highflyer, is a moth of the family Geometridae. The species was first described by Carl Peter Thunberg in 1784. It is found in the Holarctic ecozone. It is extremely abundant in northern Europe; in central Europe it becomes more local and in the south it is apparently almost lacking; in Siberia and central Asia it has a wide range. The preferred habitat is moorland areas of sub-alpine and montane regions, hedgerows and woodland margins.
Hydriomena furcata can reach a wingspan of 23–30 mm (0.91–1.18 in). These moths are very variable, both in markings as well as colour. The ground colour ranges from olive green to grey, greyish brown and reddish brown. Also the dark cross bands vary in intensity and pattern. The banding is reddish brown... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Vanoise National Park | 🇫🇷 France | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manchester | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Helsinki | 🇫🇮 Finland | |
| 4 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a July Highflyer Moth sighting in Helsinki on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 665th most-seen of the 838 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a July Highflyer Moth in Helsinki on a given day, against under 5% in August to June, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most July Highflyer Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate July Highflyer Moth sightings, Helsinki ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Manchester (United Kingdom, under 5%) and Birmingham (United Kingdom, under 5%).
Same family: Geometridae
The closest relatives of the July Highflyer Moth that you can see in Helsinki (family Geometridae, Geometer Moths) are Common Carpet Moth (about 10%), Mottled Umber (about 10%) and Latticed Heath (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the July Highflyer Moth is recorded against all the insects logged in Helsinki (6 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.
