Andrena hattorfiana
In 3 days ~10% in a week ~30%
Andrena hattorfiana is a species of mining bees belonging to the family Andrenidae subfamily Andreninae. The adults grow up to 13–16 millimetres (0.51–0.63 in) long. They have a black-brown body with sparse light hair, while the first and the second abdominal segment are reddish. The females have a pollen basket of curved hairs on the sides of the thorax.
This endangered solitary bee is present in most of Europe and in the Near East. From central Spain via Ukraine to the Urals and via Asia Minor to the Caucasus; north to southern England and south Wales, in Norway and Sweden to 60.5 ° N, in Finland to 62.5 ° N, in Russia to Perm, south to Sicily, Peloponnese and southern Turkey; not in Crete. In the eastern Mediterranean area (westwards to Sicily) the ssp. dimidiata BRULLE, 1832 occurs. The species is generally uncommon.
Dry nutrient rich and poor meadows, flood dams, road embankments, forest edges. From the lowlands to the montane elevation. Andrena hattorfiana is an oligolectic species, feeding on cardiac plants (Dipsacaceae); The main pollen source in the area is Knautia arvensis, the secondary pollen source is Knautia dipsacifolia... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Białowieża National Park | 🇵🇱 Poland | |
| 3 | Pyrénées National Park | 🇫🇷 France | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Large Scabious Mining Bee sighting in Vienna on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 495th most-seen of the 1406 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.
May and June
In those months about 10% of wildlife watchers report a Large Scabious Mining Bee in Vienna on a given day, against under 5% in July to April, the lowest months. Those are among Vienna's wettest months, with about 90 mm of rain a month against 40 mm in February.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Large Scabious Mining Bee sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 9
Of the 9 cities where we can rate Large Scabious Mining Bee sightings, Vienna ranks 4th at under 5%. The best odds are in Warsaw (Poland, about 10%), Cologne (Germany, under 5%) and Essen (Germany, under 5%).
GBIF citizen-science records
It is estimated from how often the Large Scabious Mining Bee is recorded against all the insects logged in Vienna (28 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.
