Mount Hermon June Beetle vs Dimple-back Ground Beetle

Side-by-side species comparison

Attribute Mount Hermon June Beetle Dimple-back Ground Beetle
Scientific Name Polyphylla barbata Elaphrus riparius
Order Coleoptera Coleoptera
Family Scarabaeidae Carabidae
Size 2-3 cm 6-9 mm
Habitat Beaches & Coastal Ponds & Lakes
Diet Herbivores Predators
Regions United States Europe, northern Asia, North America
Conservation Endangered Least Concern

Mount Hermon June Beetle

A scarab beetle endemic to sandhills in Santa Cruz County, California. Adults emerge in summer and are attracted to lights at night.

💡

Did You Know?

Its larvae feed on roots underground for up to three years before emerging as adults.

Dimple-back Ground Beetle

A small, fast-running beetle with distinctive cup-shaped depressions on its elytra that create a dimpled appearance. It has iridescent bronze-green coloring and runs on wet mud.

💡

Did You Know?

Each dimple on its elytra contains a raised center that creates a mirror-like reflection, giving the beetle a uniquely textured and sparkling appearance when viewed up close.