Chiasmia clathrata
In 3 days ~20% in a week ~30%
The latticed heath (Chiasmia clathrata) is a moth of the family Geometridae, belonging to the subfamily Ennominae, placed in the tribe Macariini. The genus was erected by Carl Linnaeus in his 1758 10th edition of Systema Naturae.
The current placement of the latticed heath in the genus Chiasmia follows from the revision by Malcolm J. Scoble (2002) of the tribe Macariini, when he showed that true Semiothisa species were restricted to the Americas. There are a number of described subspecies. Molecular work has confirmed the placement of the species within Chiasmia.
Chiasmia clathrata has a... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Białowieża National Park | 🇵🇱 Poland | |
| 3 | Aigüestortes National Park | 🇪🇸 Spain | |
| 4 | Vanoise National Park | 🇫🇷 France | |
| 5 | Gauja National Park | 🇱🇻 Latvia | |
| 6 | Plitvice Lakes National Park | 🇭🇷 Croatia | |
| 7 | Triglav National Park | 🇸🇮 Slovenia | |
| 8 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 9 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 10 | Mercantour National Park | 🇫🇷 France | |
| 11 | Pyrénées National Park | 🇫🇷 France | |
| 12 | Ecrins National Park | 🇫🇷 France | |
| 13 | Picos de Europa National Park | 🇪🇸 Spain | |
| 14 | Cévennes National Park | 🇫🇷 France | |
| 15 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 16 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 17 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 18 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Berlin | 🇩🇪 Germany | |
| 3 | Vienna | 🇦🇹 Austria | |
| 4 | Warsaw | 🇵🇱 Poland | |
| 5 | Kharkiv | 🇺🇦 Ukraine | |
| 6 | Helsinki | 🇫🇮 Finland | |
| 7 | Prague | 🇨🇿 Czechia | |
| 8 | Novosibirsk | 🇷🇺 Russia | |
| 9 | Paris | 🇫🇷 France | |
| 10 | Hamburg | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Latticed Heath sighting in Saint Petersburg on a given day, based on 59 verified sightings from GBIF citizen-science data. It is the 27th most-seen of the 448 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May to August
In those months about 10% of wildlife watchers report a Latticed Heath in Saint Petersburg on a given day, against under 5% in September to April, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Latticed Heath sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 27 cities where we can rate Latticed Heath sightings, Saint Petersburg ranks 14th at about 10%, level with the leaders once rounded. The best odds are in Birmingham (United Kingdom, about 10%), Berlin (Germany, about 10%) and Vienna (Austria, about 10%).
GBIF citizen-science records
It is estimated from how often the Latticed Heath is recorded against all the insects logged in Saint Petersburg (59 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.
