Palomena prasina
In 3 days ~20% in a week ~40%
The green shield bug (Palomena prasina) is a Palearctic shield bug species in the family Pentatomidae. The name might equally apply to several other species in the tribe Nezarini, or if referred-to as a "green stink bug", it might more appropriately belong to the larger North American bug, Chinavia hilaris. The adult green shield bug ranges in the colour of their backs from bright green to bronze, without any substantial markings. Green shield bugs are a very common shield bug throughout Europe, including the British Isles and Ireland, and are found in a large variety of habitats, including gardens. They have been found as far north as 63° N latitude.
In Europe, the bright green shield bugs appear in April or May, having hibernated as imagoes in humus during the winter. They live by eating the sap from within plants including crops such as apples, pears and hazelnuts. They fatten for a month and then mate in June.
The imago's coloration changes over the summer months from green to greenish browns even bronze to ready for the autumn, after which the life cycle will end. Mating is back-to-back. The female lays her eggs in hexagonal batches of 25 to 30, and a single female... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Białowieża National Park | 🇵🇱 Poland | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Triglav National Park | 🇸🇮 Slovenia | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Aigüestortes National Park | 🇪🇸 Spain | |
| 7 | Tatra National Park | 🇸🇰 Slovakia | |
| 8 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 9 | Wadden Sea National Park | 🇩🇪 Germany | |
| 10 | Pyrénées National Park | 🇫🇷 France | |
| 11 | Vanoise National Park | 🇫🇷 France | |
| 12 | Ecrins National Park | 🇫🇷 France | |
| 13 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manchester | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Liverpool | 🇬🇧 United Kingdom | |
| 4 | Kyiv | 🇺🇦 Ukraine | |
| 5 | London | 🇬🇧 United Kingdom | |
| 6 | Kharkiv | 🇺🇦 Ukraine | |
| 7 | Berlin | 🇩🇪 Germany | |
| 8 | Leeds | 🇬🇧 United Kingdom | |
| 9 | Hamburg | 🇩🇪 Germany | |
| 10 | Helsinki | 🇫🇮 Finland |
With luck
About 10% of wildlife watchers report a Green Shield Bug sighting in Sierra de Guadarrama National Park on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 149th most-seen of the 597 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.
April to November
In those months about 10% of wildlife watchers report a Green Shield Bug in Sierra de Guadarrama National Park on a given day, against under 5% in December to March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Green Shield Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
13th of 13
Of the 13 parks where we can rate Green Shield Bug sightings, Sierra de Guadarrama National Park ranks 13th at about 10%. The best odds are in Białowieża National Park (Poland, about 20%), Snowdonia National Park (United Kingdom, about 20%) and Triglav National Park (Slovenia, about 20%).
Same family: Pentatomidae
The closest relatives of the Green Shield Bug that you can see in Sierra de Guadarrama National Park (family Pentatomidae, Stink Bugs) are Red Shield Bug (about 20%), European Striped Shield Bug (about 10%) and Southern Green Stink Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green Shield Bug is recorded against all the insects logged in Sierra de Guadarrama National Park (23 verified sightings from 2019 to 2026), 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.
