Colymbetes Diving Beetle vs Western Banded Glowworm

Side-by-side species comparison

Attribute Colymbetes Diving Beetle Western Banded Glowworm
Scientific Name Colymbetes fuscus Zarhipis integripennis
Order Coleoptera Coleoptera
Family Dytiscidae Phengodidae
Size 16-19 mm 15-30 mm (female), 8-12 mm (male)
Habitat Ponds & Lakes Heathland
Diet Omnivores Predators
Regions Europe, Northern Asia North America, Western United States
Conservation Least Concern Least Concern

Colymbetes Diving Beetle

A medium-sized diving beetle with finely lined yellowish-brown elytra found across Europe. It inhabits a wide range of standing water habitats.

💡

Did You Know?

It is one of the first aquatic beetles to colonize newly created ponds, often arriving within days.

Western Banded Glowworm

A North American glowworm beetle where the larviform female produces rows of greenish-yellow bioluminescent spots along her body segments. Males are winged with elaborate feathery antennae.

💡

Did You Know?

The glowing female looks like a miniature train at night, with paired lateral light organs resembling lit windows on a railcar.