Western Corsair vs Green Sedge
Side-by-side species comparison
| Attribute | Western Corsair | Green Sedge |
|---|---|---|
| Scientific Name | Rasahus thoracicus | Rhyacophila dorsalis |
| Order | Hemiptera | Trichoptera |
| Family | Reduviidae | Rhyacophilidae |
| Size | 18-23 mm | 10-14 mm |
| Habitat | Woodlands | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | Western North America, Mexico | Europe, Asia |
| Conservation | Least Concern | Least Concern |
Western Corsair
A large, dark brown assassin bug found in western North America that occasionally enters homes and can deliver an intensely painful bite. It is nocturnal and attracted to lights. It preys on a variety of insects around buildings.
Did You Know?
Its bite is so painful that it is sometimes mistaken for a scorpion sting, and the pain can persist for hours, earning it frequent complaints to pest control services.
Green Sedge
A free-living caddisfly larva that does not build a case, instead roaming the streambed as an active predator. Adults have greenish wings.
Did You Know?
Unlike most caddisflies, green sedge larvae are caseless predators that hunt like underwater wolves among the stream cobbles.