Rolled-wing Beetle vs Pacific Spiketail

Side-by-side species comparison

Attribute Rolled-wing Beetle Pacific Spiketail
Scientific Name Derodontus maculatus Cordulegaster dorsalis
Order Coleoptera Odonata
Family Derodontidae Cordulegastridae
Size 2-4 mm 65-75 mm
Habitat Forests Forests
Diet Fungus Feeders Omnivores
Regions North America, Europe North America
Conservation Least Concern Least Concern

Rolled-wing Beetle

A tiny beetle that feeds on slime molds on decaying logs in cool forests.

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Did You Know?

It curls its elytra edges downward, giving the family its common name.

Pacific Spiketail

The only spiketail dragonfly on the Pacific coast of North America. It has a dark brown body with yellow dorsal spots and patrols shaded forest seepages.

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Did You Know?

It is the only spiketail species found west of the Rocky Mountains in North America.