Asian Rhagophthalmid Glowworm vs Black Forest Ground Beetle
Side-by-side species comparison
| Attribute | Asian Rhagophthalmid Glowworm | Black Forest Ground Beetle |
|---|---|---|
| Scientific Name | Rhagophthalmus ohbai | Pterostichus niger |
| Order | Coleoptera | Coleoptera |
| Family | Rhagophthalmidae | Carabidae |
| Size | 8-15 mm | 16–24 mm |
| Habitat | Grasslands | Woodlands |
| Diet | Predators | Omnivores |
| Regions | East Asia, Japan, Taiwan | Europe, Northern Asia |
| Conservation | Least Concern | Least Concern |
Asian Rhagophthalmid Glowworm
A small beetle from the family Rhagophthalmidae with neotenic, larviform females that produce a bright continuous glow. Males are winged with large eyes and reduced mouthparts.
Did You Know?
The family Rhagophthalmidae was only recently separated from Phengodidae based on molecular evidence, despite superficial similarities.
Black Forest Ground Beetle
A large jet-black ground beetle common in European forests and damp woodlands. It is one of the largest Pterostichus species in its range.
Did You Know?
Despite being flightless, it can cover surprisingly large distances on foot during its nightly foraging walks.