Small-headed Fly vs Rajah Naga Stag Beetle
Side-by-side species comparison
| Attribute | Small-headed Fly | Rajah Naga Stag Beetle |
|---|---|---|
| Scientific Name | Ogcodes pallidipennis | Prosopocoilus astacoides |
| Order | Diptera | Coleoptera |
| Family | Acroceridae | Lucanidae |
| Size | 4-8 mm | 30-70 mm including mandibles |
| Habitat | Grasslands | Grasslands |
| Diet | Parasitoids | Wood Feeders |
| Regions | Europe | Southeast Asia (Thailand, Vietnam, Laos, Myanmar, Malaysia, Indonesia) |
| Conservation | Least Concern | Least Concern |
Small-headed Fly
A round-bodied fly with a tiny head whose larva parasitizes spiders from the inside.
Did You Know?
The first-instar larva attaches to a passing spider and burrows inside to feed.
Rajah Naga Stag Beetle
A medium-sized stag beetle with reddish-brown elytra and a black head bearing distinctly toothed mandibles. Males display significant size variation with mandible shape changing allometrically.
Did You Know?
Small males have straight, simple mandibles while large males develop elaborate curved and toothed mandibles, a phenomenon called male dimorphism.