Small Yellow Wave
Hydrelia flammeolaria

Hydrelia flammeolaria, the small yellow wave, is a moth of the family Geometridae. The species was first described by Johann Siegfried Hufnagel in 1767 It is found in most of the Palearctic realm, from western Europe to Japan. 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 Small Yellow Wave 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 | 8 June 2026 | 15 June 2026 | 22 June 2026 | 3 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.