Malagasy Aquatic Beetle vs Common Mayfly
Side-by-side species comparison
| Attribute | Malagasy Aquatic Beetle | Common Mayfly |
|---|---|---|
| Scientific Name | Hydrophilus madagascariensis | Ephemera danica |
| Order | Coleoptera | Ephemeroptera |
| Family | Hydrophilidae | Ephemeridae |
| Size | 30-40 mm | 15-25 mm body |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Detritivores |
| Regions | Madagascar | Europe |
| Conservation | Least Concern | Least Concern |
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.
Common Mayfly
Adults have no functional mouths and live only 1-3 days. Massive synchronized emergences called "hatches" are among natures great spectacles. Excellent water quality indicators.
Did You Know?
Mayflies have the shortest adult lifespan of any insect — some species live just 5 minutes as adults, long enough only to mate. They are the only insects with a winged sub-adult stage.