Andrena bicolor
In 3 days ~10% in a week ~20%
Andrena bicolor, or Gwynne's mining bee, is a common and widespread Western Palearctic mining bee which is found over most of Europe as well as North Africa and the Middle East and which reaches eastwards into Siberia. Andrena bicolor is a small to medium-sized mining bee, with the males being slightly smaller than the females. The females have a coat of reddish-brown hairs on the dorsal surface of the thorax, a wholly black-haired face and indistinct bands of yellowish hairs on the margins of the first to third tergites. The spring brood can show an extensive black hair covering on the femur and the sides of the thorax, this is not as marked in the autumn brood. It has dark tibia on the hind legs but these have obvious orange hairs which have been said to resemble a pair of orange leg warmers. The spring brood males have black hairs on the head and side of the thorax and lack the bright colours of the females, while summer brood males often show brown hairs on the face and have no black hairs on the side of the thorax.
Andrena bicolor is a widely distributed species in Europe from most of Great Britain and Ireland in the west to southern Fennoscandia... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Bicoloured Miner sighting in Essen on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 381st most-seen of the 434 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.
March and April
In those months about 10% of wildlife watchers report a Bicoloured Miner in Essen on a given day, against under 5% in May to February, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Bicoloured Miner sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
6th of 8
Of the 8 cities where we can rate Bicoloured Miner sightings, Essen ranks 6th at under 5%. The best odds are in Liverpool (United Kingdom, about 10%), London (United Kingdom, under 5%) and Hamburg (Germany, under 5%).
Same genus: Andrena
The closest relatives of the Bicoloured Miner that you can see in Essen (genus Andrena, Mining Bees) are Ashy Mining Bee (about 10%), Tawny Mining Bee (about 10%) and Early Mining Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bicoloured Miner is recorded against all the insects logged in Essen (5 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.
