Snail-Case Caddisfly vs Malagasy Aquatic Beetle
Side-by-side species comparison
| Attribute | Snail-Case Caddisfly | Malagasy Aquatic Beetle |
|---|---|---|
| Scientific Name | Helicopsyche mexicana | Hydrophilus madagascariensis |
| Order | Trichoptera | Coleoptera |
| Family | Helicopsychidae | Hydrophilidae |
| Size | 5-7 mm | 30-40 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Predators |
| Regions | North America, Central America | Madagascar |
| Conservation | Least Concern | Least Concern |
Snail-Case Caddisfly
A remarkable caddisfly whose larva builds a coiled sand-grain case resembling a tiny snail shell. Found in warm streams of the American Southwest.
Did You Know?
Cases so closely resemble snail shells that they were originally described as a new genus of freshwater snail.
Malagasy Aquatic Beetle
A large, shiny black aquatic beetle with a streamlined oval body. It carries a bubble of air beneath its body for underwater breathing and swims with alternating leg strokes.
Did You Know?
Despite being called water scavenger beetles, the larvae are fierce predators of snails, tadpoles, and other aquatic invertebrates.