Aradus depressus
In 3 days ~10% in a week ~20%
Aradus depressus is a true bug in the family Aradidae. The species is found in the Palearctic from Ireland East to Siberia. In the Southeast, the range extends to the Caucasus Mountains. A. depressus is the most common species of the genus Aradus and can be found everywhere. In the Alps it occurs up to 1,600 metres (5,200 ft).
Aradus depressus lives in hardwoods infested by fungi, such as Trametes and Oxyporus. Both nymphs and adults prefer birch Betula, but they are also found at Acer, oak Quercus, Elm Ulmus, willow Salix, poplar Populus, beech Fagus, alder Alnus and apples Malus. There are also indications in the literature. that they live exceptionally well on pine Pinus.
The females readily fly from mid-April to the end of May, often far away from potential habitats. 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 Pale-Shouldered Flatbug 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.
April
In that month about 10% of wildlife watchers report a Pale-Shouldered Flatbug in Essen on a given day, against under 5% in May to March, the lowest months.
Among the best
Of the 6 cities where we can rate Pale-Shouldered Flatbug sightings, Essen ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Brussels (Belgium, under 5%).
Same order: Hemiptera
The closest relatives of the Pale-Shouldered Flatbug that you can see in Essen (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are European Firebug (about 30%), Brown Marmorated Stink Bug (about 30%) and Green Shield Bug (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale-Shouldered Flatbug 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.
