Spotted Sedge vs Brazilian Railroad Worm
Side-by-side species comparison
| Attribute | Spotted Sedge | Brazilian Railroad Worm |
|---|---|---|
| Scientific Name | Hydropsyche siltalai | Phrixothrix viviani |
| Order | Trichoptera | Coleoptera |
| Family | Hydropsychidae | Phengodidae |
| Size | 10-14 mm | 20-40 mm (female), 10-14 mm (male) |
| Habitat | Rivers & Streams | Grasslands |
| Diet | Omnivores | Omnivores |
| Regions | Europe | South America, Brazil |
| Conservation | Least Concern | Least Concern |
Spotted Sedge
A net-spinning caddisfly that constructs silken capture nets in fast-flowing water to filter food from the current. Adults have spotted brown wings.
Did You Know?
Net-spinning caddisfly larvae are such effective filter feeders that they can remove significant amounts of fine particles from stream water.
Brazilian Railroad Worm
A tropical glowworm beetle with the remarkable ability to produce both green lateral lights and a red cephalic light. The female is large and larviform, while the male is a small, short-lived winged beetle.
Did You Know?
The red and green lights are produced by different luciferases, making this beetle a subject of intensive biochemical research.