Birch Catkin Bug

Birch Catkin Bug

Kleidocerys resedae

Daily sighting probability ~10% · With luck
at Brussels

In 3 days ~20% in a week ~30%

9 Verified sightings at Brussels
47 In all 2 parks From 2019 to 2026
February Best month
☀️ Diurnal When it's spotted

About the Birch Catkin Bug

Kleidocerys resedae, the birch catkin bug, is a species of seed bug in the family Lygaeidae. It is found in Europe and Northern Asia (excluding China) and North America. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Wadden Sea National Park 🇩🇪 Germany
~10%
2 Pyrénées National Park 🇫🇷 France
<5%

Cities Where Found

# City Country Daily sighting probability
1 Helsinki 🇫🇮 Finland
~20%
2 Hamburg 🇩🇪 Germany
~20%
3 Berlin 🇩🇪 Germany
~10%
4 London 🇬🇧 United Kingdom
~10%
5 Stockholm 🇸🇪 Sweden
~10%
6 Kharkiv 🇺🇦 Ukraine
~10%
7 Kyiv 🇺🇦 Ukraine
~10%
8 Sofia 🇧🇬 Bulgaria
~10%
9 Birmingham 🇬🇧 United Kingdom
~10%
10 Nizhny Novgorod 🇷🇺 Russia
~10%

Before you go

What are the chances of seeing a Birch Catkin Bug in Brussels?

With luck

About 10% of wildlife watchers report a Birch Catkin Bug sighting in Brussels on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 200th most-seen of the 337 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Birch Catkin Bug in Brussels?

February–April and December

In those months about 10% of wildlife watchers report a Birch Catkin Bug in Brussels on a given day, against under 5% in January and May–November, the lowest months.

What time of day is best to see a Birch Catkin Bug?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most Birch Catkin Bug sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Brussels the best place to see a Birch Catkin Bug?

24th of 36

Of the 36 cities where we can rate Birch Catkin Bug sightings, Brussels ranks 24th at about 10%. The best odds are in Helsinki (Finland, about 20%), Hamburg (Germany, about 20%) and Berlin (Germany, about 10%).

Where does the Birch Catkin Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Birch Catkin Bug is recorded against all the insects logged in Brussels (9 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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