Rain Beetle Hunter vs Giant Swamp Leaf Beetle
Side-by-side species comparison
| Attribute | Rain Beetle Hunter | Giant Swamp Leaf Beetle |
|---|---|---|
| Scientific Name | Calosoma cancellatum | Donacia provostii |
| Order | Coleoptera | Coleoptera |
| Family | Carabidae | Chrysomelidae |
| Size | 18-25 mm | 8-11 mm |
| Habitat | Grasslands | Wetlands |
| Diet | Predators | Herbivores |
| Regions | North America, from Canada to Mexico | Eastern North America |
| Conservation | Least Concern | Least Concern |
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.
Giant Swamp Leaf Beetle
One of the larger species of reed beetle, with a metallic golden-green to coppery body and distinctive long antennae. Adults rest on emergent aquatic plants in wetlands.
Did You Know?
Like all Donaciinae, larvae breathe underwater by piercing plant roots and tapping into the air spaces (aerenchyma) inside the plant tissue.