Andrena clarkella
In 3 days ~10% in a week ~30%
The Clark's miner bee (Andrena clarkella) is a species of miner bee in the family Andrenidae. Other common names include Clark's andrena and Clarke's mining bee. It is found in Europe and Northern Asia (excluding China) and North America.
Etymology: William Kirby named the species in honor of Bracy Clark, an English entomologist. Identification: 10-13 mm. Male with brown hair with loose tergite bands. Rarely on flowers, more on tree bark basking. Female easy to determine in the field: very densely hairy, with black hairs on the abdomen and reddish brown hair on the mesonotum. Hind legs fox red with equally colored rail brush. Small specimens resemble Andrena bicolor. Terminal fringe dark brown.
Pollen sources: Oligolectic on willows (Salix, Salicaceae). Nest building: Bare to sparsely overgrown areas in sparse forests Forest fringes or clearings, preferably in sandy soil, but also nests in humus soils, mostly in smaller aggregations with low nest density. The nest entrance is locked before each food supply flight. One to four brood cells are created per nest, often only 5 cm, a maximum of 30 cm below the surface.
Habitat: Affinity to forests; forest fringes, forest clearings, clear cuts, preferred on sandy soil. From the lowlands to the subalpine altitude. Parasites: cuckoo bee is Nomada leucophthalma. As another nest parasite Bombylius major was observed. Adults are sometimes infested with Stylops melittae.
Flight period: In one generation from early March to mid-May. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | Novosibirsk | 🇷🇺 Russia | |
| 4 | Birmingham | 🇬🇧 United Kingdom | |
| 5 | Liverpool | 🇬🇧 United Kingdom | |
| 6 | Nizhny Novgorod | 🇷🇺 Russia | |
| 7 | Yekaterinburg | 🇷🇺 Russia | |
| 8 | Moscow | 🇷🇺 Russia | |
| 9 | Saint Petersburg | 🇷🇺 Russia | |
| 10 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Clark's Mining Bee sighting in Bavarian Forest National Park on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 964th most-seen of the 1115 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.
March
In that month about 20% of wildlife watchers report a Clark's Mining Bee in Bavarian Forest National Park on a given day, against under 5% in April to February, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Clark's Mining Bee sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Clark's Mining Bee sightings: under 5% of wildlife watchers there report one on a given day.
Same genus: Andrena
The closest relatives of the Clark's Mining Bee that you can see in Bavarian Forest National Park (genus Andrena, Mining Bees) are Large Scabious Mining Bee (about 10%), Ashy Mining Bee (about 10%) and Tawny Mining Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Clark's Mining Bee is recorded against all the insects logged in Bavarian Forest National Park (16 verified sightings from 2019 to 2026), 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.
