The males have long, whitish antennae, the females shorter, both sexes having bronzy or metallic greenish forewings. The moths fly in the daytime, sometimes occurring in swarms.
The caterpillar lives in a portable case.
Flight Season
Flies from May to June in one generation.
Size and Family
- Family – Adelidae
- Small Sized
- Wingspan Range – 14-18mm
Conservation status
- UK BAP: Not listed
- Common
Caterpillar Food Plants
Caterpillars feed on leaf-litter.
Habitat
Open areas such as heathland, moorland, gardens, parks and woodland glades.
Distribution
- Countries – England, Wales, Scotland and Ireland
-
Fairly frequent throughout England, Wales and southern Scotland but more local in Ireland.

Green longhorn - Heath McDonald
Green longhorn
Heath McDonald

Green longhorn - Ryszard Szczygieł
Green longhorn
Ryszard Szczygieł

Green longhorn - Vlad Proklov
Green longhorn
Vlad Proklov

Green longhorn - Vlad Proklov
Green longhorn
Vlad Proklov

Green longhorn - Paul Davis
Green longhorn
Paul Davis

Green longhorn - Vlad Proklov
Green longhorn
Vlad Proklov

Green longhorn - Ben Sale
Green longhorn
Ben Sale

Green longhorn (underwing) - Vlad Proklov
Green longhorn (underwing)
Vlad Proklov

Green longhorns - Tim Melling
Green longhorns
Tim Melling

Green longhorns - Vlad Proklov
Green longhorns
Vlad Proklov

Green Longhorn Moths - Laura Gundy
Green Longhorn swarm
Green Longhorn Moths - Laura Gundy