Mount Hermon June Beetle vs Crawling Water Beetle

Side-by-side species comparison

Attribute Mount Hermon June Beetle Crawling Water Beetle
Scientific Name Polyphylla barbata Haliplus ruficollis
Order Coleoptera Coleoptera
Family Scarabaeidae Haliplidae
Size 2-3 cm 2-3 mm
Habitat Beaches & Coastal Ponds & Lakes
Diet Herbivores Herbivores
Regions United States Europe
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.

Crawling Water Beetle

A tiny, oval water beetle with a yellowish body covered in rows of dark punctures. Unlike diving beetles, it crawls slowly among aquatic vegetation rather than swimming actively.

💡

Did You Know?

It stores air beneath enlarged hind coxal plates, which act as a built-in oxygen reservoir while submerged.