Birch Catkin Bug

Kleidocerys resedae

Birch Catkin Bug (Kleidocerys resedae)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

Kleidocerys resedae, the birch catkin bug, is a species of seed bug in the family Lygaeidae. It is found in Europe and Northern Asia and North America. Source

Where is the Birch Catkin Bug now?

In the last 8 weeks it was recorded 61 times across 6 areas (each area is a 5 degree square).

See the Birch Catkin Bug on the live map

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How the Birch Catkin Bug moves through the year

Over the weeks it was present in the past year, its centre in Europe ranged from 50°N in September to 63°N in September, about 1,400 km apart.

When does the Birch Catkin Bug arrive?

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

RegionFirst arrivalLast arrivalTypical peakAreas
Europe21 September 202621 September 202621 September 20261

Download every area as CSV · Review these arrival dates (researchers, ORCID sign-in)

Arriving at the same time in Europe

Every arrival in Europe, month by month

Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured · How it compares with human observers