Yellow Swarming Fly vs Indian Owlfly
Side-by-side species comparison
| Attribute | Yellow Swarming Fly | Indian Owlfly |
|---|---|---|
| Scientific Name | Thaumatomyia notata | Helicomitus festivus |
| Order | Diptera | Neuroptera |
| Family | Chloropidae | Ascalaphidae |
| Size | 2-2.5 mm | 38-50 mm wingspan |
| Habitat | Grasslands | Forests |
| Diet | Predators | Predators |
| Regions | Europe | India, Sri Lanka, Southeast Asia |
| Conservation | Least Concern | Least Concern |
Yellow Swarming Fly
A tiny yellow fly famous for forming enormous hibernation aggregations in buildings, sometimes numbering millions. Larvae are predatory on root aphids in grassland.
Did You Know?
Can form hibernation clusters of millions in attic spaces, with individual aggregations weighing several kilograms.
Indian Owlfly
A tropical Asian owlfly with long antennae and patterned wings. Found along forest edges and clearings in the Indian subcontinent.
Did You Know?
Its large clubbed antennae are thought to help detect prey scent during aerial hunts.