Vernal Shield Bug

Vernal Shield Bug

Holcostethus strictus

Daily sighting probability <5% · Rare
at London

In 3 days ~10% in a week ~20%

8 Verified sightings at London
90 In all 9 parks From 2019 to 2026
April Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Sierra Nevada National Park 🇪🇸 Spain
~10%
2 Vanoise National Park 🇫🇷 France
~10%
3 Mercantour National Park 🇫🇷 France
~10%
4 Bavarian Forest National Park 🇩🇪 Germany
~10%
5 Ecrins National Park 🇫🇷 France
~10%
6 Fertő-Hanság National Park 🇭🇺 Hungary
~10%
7 Cévennes National Park 🇫🇷 France
~10%
8 Sierra de Guadarrama National Park 🇪🇸 Spain
~10%
9 Pyrénées National Park 🇫🇷 France
<5%

Cities Where Found

# City Country Daily sighting probability
1 Bucharest 🇷🇴 Romania
~10%
2 Lyon 🇫🇷 France
~10%
3 Vienna 🇦🇹 Austria
~10%
4 Istanbul 🇹🇷 Turkey
~10%
5 Warsaw 🇵🇱 Poland
~10%
6 Helsinki 🇫🇮 Finland
~10%
7 Paris 🇫🇷 France
~10%
8 Budapest 🇭🇺 Hungary
~10%
9 Nizhny Novgorod 🇷🇺 Russia
~10%
10 Berlin 🇩🇪 Germany
~10%

Before you go

What are the chances of seeing a Vernal Shield Bug in London?

Rare

Under 5% of wildlife watchers report a Vernal Shield Bug sighting in London on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1219th most-seen of the 1504 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.

When is the best time to see a Vernal Shield Bug in London?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Vernal Shield Bug in London on a given day, so our monthly data shows no clear season.

What time of day is best to see a Vernal Shield Bug?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Vernal 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.

Is London the best place to see a Vernal Shield Bug?

25th of 25

Of the 25 cities where we can rate Vernal Shield Bug sightings, London ranks 25th at under 5%. The best odds are in Bucharest (Romania, about 10%), Lyon (France, about 10%) and Vienna (Austria, about 10%).

Where does the Vernal Shield Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Vernal Shield Bug is recorded against all the insects logged in London (8 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.

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