Bombus bohemicus
In 3 days ~10% in a week ~20%
Bombus bohemicus, also known as the gypsy's cuckoo bumblebee, is a species of socially parasitic cuckoo bumblebee found in most of Europe with the exception of the southern Iberian Peninsula and Iceland. B. bohemicus practices inquilinism, or brood parasitism, of other bumblebee species. B. bohemicus is a generalist parasite, successfully invading several species from genus Bombus. The invading queen mimics the host nest's chemical signals, allowing her to assume a reproductively dominant role as well as manipulation of host worker fertility and behavior.
B. bohemicus is part of the order Hymenoptera, which includes ants, bees, wasps, and sawflies, the family Apidae, specific to bees, and the genus Bombus, which includes all bumblebees. B. bohemicus belongs to the subgenus Psithyrus, or the cuckoo bees, which includes 29 species found in Europe and the New World. Species in this subgenus are obligate parasites of other bumble bees. The females have lost their pollen-collecting corbiculae and their ability to rear their own brood. Cuckoo bees have also entirely eliminated the worker class, producing only reproductive males and females. This form of parasitism... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Novosibirsk | 🇷🇺 Russia | |
| 2 | Moscow | 🇷🇺 Russia | |
| 3 | Nizhny Novgorod | 🇷🇺 Russia | |
| 4 | Helsinki | 🇫🇮 Finland | |
| 5 | Munich | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Bohemian Cuckoo Bumble Bee sighting in Helsinki on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 553rd 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.
May
In that month about 10% of wildlife watchers report a Bohemian Cuckoo Bumble Bee in Helsinki on a given day, against under 5% in June to April, the lowest months.
4th of 5
Of the 5 cities where we can rate Bohemian Cuckoo Bumble Bee sightings, Helsinki ranks 4th at under 5%. The best odds are in Novosibirsk (Russia, about 10%), Moscow (Russia, under 5%) and Nizhny Novgorod (Russia, under 5%).
Same genus: Bombus
The closest relatives of the Bohemian Cuckoo Bumble Bee that you can see in Helsinki (genus Bombus, Bumble Bees) are Tree Bumble Bee (about 20%), Common Carder Bumble Bee (about 20%) and Red-Tailed Bumble Bee (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bohemian Cuckoo Bumble Bee is recorded against all the insects logged in Helsinki (8 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.
