European Glowworm vs Blackburn's Damselfly
Side-by-side species comparison
| Attribute | European Glowworm | Blackburn's Damselfly |
|---|---|---|
| Scientific Name | Lampyris noctiluca | Megalagrion blackburni |
| Order | Coleoptera | Odonata |
| Family | Lampyridae | Coenagrionidae |
| Size | 15-25 mm (females); 10-12 mm (males) | 30-40 mm |
| Habitat | Hedgerows | Forests |
| Diet | Omnivores | Omnivores |
| Regions | Europe, Western Asia | Oceania (Hawaii) |
| Conservation | Vulnerable | Endangered |
European Glowworm
A well-known European firefly where only the wingless female produces a steady green glow. Males are winged but produce no light.
Did You Know?
Females glow for up to two hours each night to attract flying males, then stop after mating.
Blackburn's Damselfly
A Hawaiian endemic damselfly historically found on multiple islands but now restricted to a few locations. It breeds in streams and seeps in native forests. It is one of the most threatened members of the remarkable Megalagrion radiation.
Did You Know?
Hawaiian Megalagrion damselflies have evolved to breed in an extraordinary range of habitats, from streams to tree holes to damp leaf litter.