Plant bug
Closterotomus norvegicus

Closterotomus norvegicus is a species of bugs belonging to the family Miridae, subfamily Mirinae. It can be found feeding on nettle, clover, and cannabis, as well as Compositae, potatoes, carrots and chrysanthemums. They prefer to feed on the flowers, buds and unripe fruit. The species occurs in the Palearctic-British Isles and east across continental Europe to Siberia. It also occurs in the Nearctic as an adventive species. In 1997 it was moved from the genus Calocoris to its current name. Source
Where it is now
No records in the last 8 weeks. It may be out of season where the observers and sensors are.
See the Plant bug on the live map
Arrival dates
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.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| Europe | 1 June 2026 | 1 June 2026 | 15 June 2026 | 1 |
| North America | 16 March 2026 | 16 March 2026 | 6 April 2026 | 1 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.