Sightings of the green forest hoverfly, one of the United Kingdom’s rarest insects, have surged far beyond previous records. A four-year study backed by Forestry England logged more than 450 observations in the New Forest, Hampshire—one of only two known habitats nationwide, alongside Windsor Great Park in Berkshire. Before 2022, just 150 sightings had ever been recorded.

UK’s rare green hoverfly sightings reach new highs
BBC

