Dyroderes umbraculatus
In 3 days ~20% in a week ~40%
Dyroderes umbraculatus is a shield bug belonging to the family Pentatomidae, subfamily Pentatominae. The species was first described by Johan Christian Fabricius in 1775. The genus Dyroderes has one living representative, but BioLib also records one fossil species: †Dyroderes laticollis Piton, 1940.
D. umbraculatus mainly lives on Galium species and is found in Austria, the British Isles, Bulgaria, France, Greece, Hungary, Italy, Portugal, Spain and Switzerland. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a White-Shouldered Shieldbug sighting in Bucharest on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 133rd most-seen of the 361 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May
In that month about 20% of wildlife watchers report a White-Shouldered Shieldbug in Bucharest on a given day, against under 5% in June to March, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most White-Shouldered Shieldbug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 12 cities where we can rate White-Shouldered Shieldbug sightings, Bucharest has the highest daily chance: about 10%. Next come Valencia (Spain, about 10%) and Rome (Italy, about 10%).
Same family: Pentatomidae
The closest relatives of the White-Shouldered Shieldbug that you can see in Bucharest (family Pentatomidae, Stink Bugs) are Southern Green Stink Bug (about 20%), Mediterranean Spiny Stink Bug (about 20%) and Brown Marmorated Stink Bug (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-Shouldered Shieldbug is recorded against all the insects logged in Bucharest (17 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.
