Thyreocoris scarabaeoides
In 3 days ~10% in a week ~20%
Thyreocoris scarabaeoides is a species of shield bug found in Europe. It is small (3–4 mm.), nearly round and dark bronzy coloured. The surface is shining, glabrous and strongly punctured. The antennae are piceous, the scutellum not quite covering the corium and membrane. The legs are black with spinose tibiae and piceous
tarsi. The nymphs and adults feed primarily on violets (Viola), but they are found on the ground under different plant species. Initially, the nymphs live in aggregations. Overwintering is under dry leaf and needle litter, under stones or in moss. Mating takes place from April, the egg laying mainly in May and June. The adult animals of the new generation can be found from late July or August. There is a single generation per year. 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 Scarab Shieldbug 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.
May
In that month about 10% of wildlife watchers report a Scarab Shieldbug in Vienna on a given day, against under 5% in June to April, the lowest months.
Among the best
Of the 3 cities where we can rate Scarab Shieldbug sightings, Vienna ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Bucharest (Romania, under 5%).
Same order: Hemiptera
The closest relatives of the Scarab Shieldbug that you can see in Vienna (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are Southern Green Stink Bug (about 30%), European Firebug (about 30%) and Brown Marmorated Stink Bug (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scarab Shieldbug 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.
