Stictoleptura rubra
In 3 days ~20% in a week ~50%
Stictoleptura rubra, the red-brown longhorn beetle, is a species of beetle belonging to the family Cerambycidae. They visit flowering plants for nectar and pollen, while larvae develop and feed within dead wood and tree stumps of coniferous trees (Picea, Pinus, Abies, Larix). They have yeasts in their gut, enabling them to digest cellulose.
Stictoleptura rubra can reach a length of 10–20 millimetres (0.39–0.79 in). This species has an evident sexual dimorphism, with variations in color and shape. Elytra and pronotum of the females are uniformly reddish-brown or reddish-orange, while in males head and pronotum are black. Moreover the males have brown or pale ochre elytra and often they are smaller and narrower than the females.
Life cycle of this species lasts two - three... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tatra National Park | 🇸🇰 Slovakia | |
| 2 | Białowieża National Park | 🇵🇱 Poland | |
| 3 | Gauja National Park | 🇱🇻 Latvia | |
| 4 | Triglav National Park | 🇸🇮 Slovenia | |
| 5 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 6 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 7 | Aigüestortes National Park | 🇪🇸 Spain | |
| 8 | Pyrénées National Park | 🇫🇷 France | |
| 9 | Wadden Sea National Park | 🇩🇪 Germany | |
| 10 | Cévennes National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hamburg | 🇩🇪 Germany | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Munich | 🇩🇪 Germany | |
| 4 | Essen | 🇩🇪 Germany | |
| 5 | Kyiv | 🇺🇦 Ukraine | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Warsaw | 🇵🇱 Poland | |
| 8 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 9 | Copenhagen | 🇩🇰 Denmark | |
| 10 | Brussels | 🇧🇪 Belgium |
With luck
About 10% of wildlife watchers report a Red Pine Longhorn Beetle sighting in Essen on a given day, based on 31 verified sightings from GBIF citizen-science data. It is the 92nd most-seen of the 434 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.
July
In that month about 20% of wildlife watchers report a Red Pine Longhorn Beetle in Essen on a given day, against under 5% in August to May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Red Pine Longhorn 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.
Among the best
Of the 22 cities where we can rate Red Pine Longhorn Beetle sightings, Essen ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Hamburg (Germany, about 10%), Helsinki (Finland, about 10%) and Munich (Germany, about 10%).
Same family: Cerambycidae
The closest relatives of the Red Pine Longhorn Beetle that you can see in Essen (family Cerambycidae, Longhorn Beetles) are Wasp Beetle (about 10%), Spotted Longhorn Beetle (about 10%) and The Tanner (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red Pine Longhorn Beetle is recorded against all the insects logged in Essen (31 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.
