Tremex fuscicornis
In 3 days ~10% in a week ~20%
Tremex fuscicornis (tremex wasp) is a species of horntail, native to Europe and Asia, and has been introduced to Australia, Canada and Chile. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dark-Horned Trembling Woodwasp sighting in Vienna on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 666th 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 20%, if each day is a fresh chance.
August and September
In those months about 10% of wildlife watchers report a Dark-Horned Trembling Woodwasp in Vienna on a given day, against under 5% in October to July, the lowest months.
Among the best
Of the 4 cities where we can rate Dark-Horned Trembling Woodwasp sightings, Vienna ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Kyiv (Ukraine, under 5%) and Berlin (Germany, under 5%).
Same order: Hymenoptera
The closest relatives of the Dark-Horned Trembling Woodwasp that you can see in Vienna (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are European Hornet (about 20%), Scolia hirta (about 20%) and European Orchard Bee (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark-Horned Trembling Woodwasp is recorded against all the insects logged in Vienna (16 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.
