Trichodes apiarius
In 3 days ~30% in a week ~60%
Trichodes apiarius is a beetle species of checkered beetles belonging to the family Cleridae, subfamily Clerinae. It is found in most of Europe, in the eastern Palearctic realm, and in North Africa. The adult is a hairy, small beetle with shining blue or black head and scutellum. The elongated elytra (wing cases) are bright red with black bands. This species can easily be distinguished from Trichodes alvearius for the black terminal band reaching the apex of the elytra. Adults grow up to 9–16 millimetres (0.35–0.63 in) and can be encountered from May through June on the flowers, mainly Apiaceae, feeding on the pollen. They also actively hunt small insects.
The larvae are parasites of bees (hence the name “apiarius”), as the adults lay the eggs in the nests of solitary bees (Osmia and Megachile species) or in hives of honey bees, eating larvae and nymphs. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Triglav National Park | 🇸🇮 Slovenia | |
| 2 | Aigüestortes National Park | 🇪🇸 Spain | |
| 3 | Kiskunság National Park | 🇭🇺 Hungary | |
| 4 | Vanoise National Park | 🇫🇷 France | |
| 5 | Tatra National Park | 🇸🇰 Slovakia | |
| 6 | Biebrza National Park | 🇵🇱 Poland | |
| 7 | Mercantour National Park | 🇫🇷 France | |
| 8 | Białowieża National Park | 🇵🇱 Poland | |
| 9 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 10 | Cévennes National Park | 🇫🇷 France | |
| 11 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 12 | Ecrins National Park | 🇫🇷 France | |
| 13 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 14 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Bee-Eating Beetle sighting in Vienna on a given day, based on 251 verified sightings from GBIF citizen-science data. It is the 44th most-seen of the 1406 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Bee-Eating Beetle in Vienna on a given day, against under 5% in September to April, the lowest months. That is one of Vienna's wettest months, with about 90 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 Bee-Eating Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 20
Of the 20 cities where we can rate Bee-Eating Beetle sightings, Vienna ranks 2nd at about 10%. The best odds are in Budapest (Hungary, about 20%).
GBIF citizen-science records
It is estimated from how often the Bee-Eating Beetle is recorded against all the insects logged in Vienna (251 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.
