Lilioceris lilii
In 3 days ~20% in a week ~50%
The scarlet lily beetle, red lily beetle, or lily leaf beetle (Lilioceris lilii), is a leaf beetle that eats the leaves, stem, buds, and flowers, of lilies, fritillaries and other members of the family Liliaceae. It lays its eggs most often on Lilium and Fritillaria species. In the absence of Lilium and Fritillaria species, there are fewer eggs laid and the survival rate of eggs and larvae is reduced. It is now a pest in most temperate climates where it is not indigenous and lilies are cultivated.
The scarlet lily beetle belongs to the order Coleoptera, and the family Chrysomelidae, the leaf beetles. The adult lily beetle is about 6 to 9 mm (1⁄4 to 3⁄8 in) in length, with relatively long legs and antennae. Its elytra (harder forewings) are bright scarlet and shiny. Its underside, legs, eyes, antennae and head are all black. It has large eyes, a slim thorax, and a wide abdomen. Each antenna is made up of 11 segments. The eyes are notched and there are two grooves on the thorax.
The scarlet lily beetle may be confused with the cardinal beetle (Pyrochroa serraticornis), which also has red elytra and a black underside. The wing cases of the lily leaf beetle are dimpled... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mercantour National Park | 🇫🇷 France | |
| 2 | Ecrins National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Acadia National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | Detroit | 🇺🇸 United States | |
| 4 | Birmingham | 🇬🇧 United Kingdom | |
| 5 | London | 🇬🇧 United Kingdom | |
| 6 | Turin | 🇮🇹 Italy | |
| 7 | Edmonton | 🇨🇦 Canada | |
| 8 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 9 | Leeds | 🇬🇧 United Kingdom | |
| 10 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Lily Leaf Beetle sighting in Mercantour National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 348th most-seen of the 412 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.
May and October
In those months about 20% of wildlife watchers report a Lily Leaf Beetle in Mercantour National Park on a given day, against under 5% in July, September and November–April, the lowest months. Those are among Mercantour National Park's wettest months, with about 130 mm of rain a month against 50 mm in August.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Lily Leaf Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 6 parks where we can rate Lily Leaf Beetle sightings, Mercantour National Park has the highest daily chance: about 10%. Next come Ecrins National Park (France, about 10%) and Pyrénées National Park (France, about 10%).
Same family: Chrysomelidae
The closest relatives of the Lily Leaf Beetle that you can see in Mercantour National Park (family Chrysomelidae, Leaf Beetles) are Black-Punctured Leaf Beetle (about 20%), Four Spotted Leaf Beetle (about 10%) and Daffodil Leaf-Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lily Leaf Beetle is recorded against all the insects logged in Mercantour National Park (5 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.
