Rhamnusium bicolor
In 3 days ~10% in a week ~30%
Rhamnusium bicolor is a species of beetle in the family Cerambycidae. The species is widespread in Europe. It was first described by German biologist Franz von Paula Schrank (1747–1835) in 1781. The adult beetle is 12–24 mm (0.47–0.94 in) in size and flies between May and June. The development cycle is 2-3 years. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kyiv | 🇺🇦 Ukraine |
Rare
Under 5% of wildlife watchers report a Rhamnusium bicolor sighting in Kyiv on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 477th most-seen of the 753 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Rhamnusium bicolor in Kyiv on a given day, against under 5% in July to May, the lowest months. That is one of Kyiv's wettest months, with about 75 mm of rain against 40 mm in April.
Only Kyiv, in our data
Kyiv is the only city on Wallace's Line with enough records to rate Rhamnusium bicolor sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Cerambycidae
The closest relatives of the Rhamnusium bicolor that you can see in Kyiv (family Cerambycidae, Longhorn Beetles) are Fairy-Ring Longhorn Beetle (about 10%), Black-Striped 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 Rhamnusium bicolor is recorded against all the insects logged in Kyiv (9 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.
