Bombus soroeensis
In 3 days ~10% in a week ~20%
The broken-belted bumblebee or Ilfracombe bumblebee (Bombus soroeensis) is a species of bumblebee present in most of Europe and parts of Asia. This relatively small bumblebee has a rather oblong face and a proboscis of medium length. The body of the female is black with two yellow bands, one at the collar, one at the second tergite (abdominal segment). The latter often has black hair in the middle, thus dividing it into two. In males, the yellow abdominal band is broader, and usually covers most of the first tergite, as well as the second. On both sexes, the tail is white, often mixed with orange-yellow hairs. On the northern Scottish form, the female usually has an entirely white tail. Melanic forms can be found on the European continent. The bee reaches an average length of 16 mm (0.63 in) (queen, wingspan 30 mm (1.2 in)), 12 mm (0.47 in) (worker), and 13 mm (0.51 in) (male).
The nest, which at most has about 80 to 150 workers, is usually underground. At least in Britain, the bumblebee seems to favour uplands, heaths, and grasslands. Favourite flowers are clovers, ling, harebell and Scabiosa as bird's-foot trefoils.
In Eurasia, this... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 2 | Tatra National Park | 🇸🇰 Slovakia | |
| 3 | Triglav National Park | 🇸🇮 Slovenia | |
| 4 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Broken-Belted Bumble Bee sighting in Moscow on a given day, based on 37 verified sightings from GBIF citizen-science data. It is the 366th most-seen of the 1111 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.
July
In that month about 10% of wildlife watchers report a Broken-Belted Bumble Bee in Moscow on a given day, against under 5% in August to June, the lowest months. That is one of Moscow's wettest months, with about 95 mm of rain against 40 mm in February.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Broken-Belted Bumble Bee sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Moscow, in our data
Moscow is the only city on Wallace's Line with enough records to rate Broken-Belted Bumble Bee sightings: under 5% of wildlife watchers there report one on a given day.
Same genus: Bombus
The closest relatives of the Broken-Belted Bumble Bee that you can see in Moscow (genus Bombus, Bumble Bees) are Common Carder Bumble Bee (about 10%), Tree Bumble Bee (about 10%) and Red-Tailed Bumble Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Broken-Belted Bumble Bee is recorded against all the insects logged in Moscow (37 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.
