Screech Beetle vs Rain Beetle Hunter
Side-by-side species comparison
| Attribute | Screech Beetle | Rain Beetle Hunter |
|---|---|---|
| Scientific Name | Hygrobia hermanni | Calosoma cancellatum |
| Order | Coleoptera | Coleoptera |
| Family | Hygrobiidae | Carabidae |
| Size | 8-10 mm | 18-25 mm |
| Habitat | Ponds & Lakes | Grasslands |
| Diet | Predators | Predators |
| Regions | Europe, North Africa | North America, from Canada to Mexico |
| Conservation | Least Concern | Least Concern |
Screech Beetle
A medium-sized, reddish-brown water beetle that produces an audible squeaking sound when handled. It is found in muddy ponds across Europe.
Did You Know?
It produces a squeaking noise by rubbing its abdomen against the inside of its wing cases.
Rain Beetle Hunter
A medium to large caterpillar hunter with dark elytra marked by rows of rectangular pits giving a grid-like appearance. It is one of the most common Calosoma species across North American prairies.
Did You Know?
It emerges in massive numbers after rain events on the Great Plains, earning the nickname rain beetle, and can be found running across roads in huge aggregations.