Japanese Horntail vs Australian March Fly
Side-by-side species comparison
| Attribute | Japanese Horntail | Australian March Fly |
|---|---|---|
| Scientific Name | Eriotremex formosanus | Bibio imitator |
| Order | Hymenoptera | Diptera |
| Family | Siricidae | Bibionidae |
| Size | 20-35 mm | 6-10 mm |
| Habitat | Woodlands | Woodlands |
| Diet | Wood Feeders | Herbivores |
| Regions | East Asia, Taiwan, introduced to southeastern United States | Australia |
| Conservation | Least Concern | Least Concern |
Japanese Horntail
A large wood wasp with a robust reddish-brown body and dark wings. Native to East Asia, it attacks stressed and recently felled hardwood trees.
Did You Know?
This species was first detected in North America in 1974 and is one of the few tropical siricid wood wasps to establish invasive populations.
Australian March Fly
A robust black bibionid fly that appears in large numbers during the Australian autumn. It has a hairy body and is a sluggish flyer, often seen resting on vegetation.
Did You Know?
Despite sharing the common name with horse flies in Australia, march flies in the family Bibionidae are completely harmless.